Good morning, good afternoon, good evening, good days. This is Fuchiao from China Mobile giving you this virtual session from Beijing, China. Today, I want to share our continuous integration, continuous testing, and continuous delivery pipeline we're using in China Mobile and also share our view for the DevOps loops for our future telco cloud. So on the second page, I actually listed the contents I want to share in this session. First is about the challenges we see for the telco cloud. And secondly, I want to share the view we have for the whole DevOps loops for future telco cloud. And finally, I want to share some of the experience we got when we were constructing our telco cloud. So talking about NFE, NFE actually the first kind of concept was proposed eight years ago by SCNFE in the white paper. And then SCNFE worked out the framework. It is a very well-known framework for NFE, and it's very simple and straightforward. However, today I want to share with you the real NFE in reality. China Mobile actually launched our telco cloud construction since 2019, which I think is also one of the world's largest NFE projects so far. With tens of thousands of servers in total, we have this cloud located in eight regions across the country. Here I try to give you some of the examples of how our source pool actually looked like. Hope you could have some direct feeling on how the complexity would be for our telco cloud. So you can see, for the first resource pool, we have servers, switches, and distributed storage from all different vendors. However, we have OpenStack and VNFs from the same vendors, which means that interoperability between VNFs and the OpenStack will be much easier because they could have their own private interface. And then, but if you go to the third resource pool, you could see that the VNF and the OpenStack are from different vendors, which means that you should have to deal with the interoperability between these two. And when you go to the second resource pool, you could see some of the VNFs are from the same vendor, but the others are from different vendors. But they use separate orchestrator. But if you go to the fourth one, you could see that they share the same orchestrator. So we have to also deal with the interoperability problem between the orchestrator and the third party VNF manager. So I guess this could probably help you to understand more about how our telco cloud could be like. So on the third page, I want to show the challenges we have. First is about the scalability. We have more than 60 resource pools constructed almost at the same time, which actually require a lot of human powers and resources into this. And each resource pool actually includes physical servers of more than 1,000. And we have actually a huge workload for configuration, deploy, and testing for all these resource pools. And the second challenge, as we see, is multi-vendor problem. I think you have some feeling about that in the previous slides. In total, we have tens of vendors included in our telco cloud. So you could see that we have complicated interoperability work we need to do. And we need to check the interoperability, making sure that they could work together. And when you're actually going deeper into the cross vendor interfaces, you will realize that we are still lacking of a lot of standards and still lacking of a deeper understanding of the standards when you do the interoperability. So issues we see when we actually do in this telco cloud delivery. First is, although we have developing a lot of automation tools in the open source community and also in vendors on product, but when we're actually constructing such a large-scale cloud, we still see that we are lacking of automation tools. Most of the vendors are still deploying the cloud manually or just to use some simple automation scripts. Efficiency is the biggest problem for us. I know automated mission tools, they are developing, but they have never tried these out in such huge scale. So people are not quite so confident with that. And eventually, they decided not to use these automation tools. So the second one is about interoperability. This kind of issue actually happened when different vendors put a need to integrate and work together. And a lot of interoperation needs to be decided and worked out. And even the software needs to be modified on site, which it takes a lot of time and you cannot count on those things that actually are worked out just on site. And third is about the manual configuration difference. When you finish the deployment of the cloud, you need to do a lot of configuration work. However, these configuration may be different in different roles because they are done by different engineers. And some configuration may cause the performance decrease due to the lack of experience of the engineers. So this is also some problem we face in our technical cloud. So now I would like to go to the second part of my talk. It's about our view for the future DevOps loops. DevOps is a very hard topic actually in these years, especially when we talk about cloud native, when we talk about the CI CD for the software. But we also consider that DevOps is very important for our technical cloud. But probably we need to make it much clear how DevOps actually means for telco cloud. It's probably a little bit different from the whole DevOps loops for the software development. For cloud-based telco cloud, we consider it's very important to build up this DevOps loop to make sure that we have a normalized planning, deploy, and feedback look happening actually in an automatic way. It is also important to keep in mind that the scalability and multi-vendor nature of this telco cloud. So when you design the DevOps loops for telco, you need to realize these two things. There are actually a lot of DevOps tools we could already utilize in telco. However, there is also need to develop new tools and even standard interfaces in order to solve the challenge for the scalability and the multi-vendor problems that I mentioned. So on page A, they actually share how we think the DevOps loops could look like for future telco cloud. Within Channel Mobile, we think that it should be down in a continuous way. We call it as continuous integration, continuous testing, and continuous delivery. So in this kind of continuous delivery cycle, we hope it could help us to increase the efficiency of the future network cloud delivery and also help to quickly feedback to the vendor products. So you could see this DevOps loops is different from the software development DevOps loops because it actually connects with vendors. And it actually first go to the lab and then go to the field to go to the delivery site. So it could be a little bit different. However, there are a lot of things we could reuse, we could utilize from the whole DevOps communities. On page nine, I want to share some of the details of how we see this. So first, our CI, CT, CD, it actually includes three phases. We think from CI to CT, we hope all the interoperability issues could be solved. We provide lab environment and CI, CT, automation pipeline to make sure that efficient cross-vendor interoperability actually could happen before we directly go to the delivery on site. So any new versions that actually happened in the vendors could test and iterate within days in our labs. And now we have multi-vendors to actually join this kind of activity to make sure that any time they have their version updates, they could promote that to our version gateway in our lab. And then we will automatically build up the environment, deploy the new version, and do the interoperability test with other vendors' product. So with this, we hope that we could achieve the goal as any vendor match can be tested in advance. Any product can iterate within days. And any lab resources can make full use of. We don't need to actually deploy some software and wait in the lab to do the integration work. Any time you need to do any match, they will deploy automatically in hours. And for the second phase from CT to CD, we hope it could be a precise copy from lab to site. Our versions tested in lab eventually will result in some deployment and configuration scripts and codes. And we hope that these could be precisely copied on site and delivered automatically. So you see, when we do the continuous testing within lab, we actually have a lot of things. And they are all in Docker images. We have the software version that actually passed the test. We have the script for cross vendor interoperability. We have script for automation configuration tools for automatic deployment. A lot of these things, we put them in Docker images. And then we transfer to our site to do the continuous delivery. Mostly the things we need to do on site is we have to modify the configuration parameters according to the scale, and then the whole resource pool could be bring up automatically. We hope that automatic delivery based on image and scripts already tested in lab, the cross vendor interoperability solutions already tested in lab, and the configuration scripts could copy across different pools to avoid the human engineer experience difference for that. So these are mostly the view we have for the future DevOps loops for our telco cloud. And for the third part, I want to share some of the things we are doing in China Mobile. So first, I want to give you some big view of how our network look like. We start since 2019. And now we finish two phases for the construction. We have tens of thousands of physical servers included in the cloud. And they are distributed in eight regions across the country, and you know it's a big country. We have about 20 hardware and software suppliers included in the two phases of construction. So when we do all these construction work, we gradually decided that we need to set up an overall continuous delivery process. So we have a closed loop network delivery process we build up. It helps us to do the whole construction work independent of any vendors or integrators. This whole loop is built based on CI, CD, and automation tools to improve the whole efficiency. So you can see that we do the planning, and then we bring all the things to our lab to do the pre-test. And then we have all these things put in the Docker image and bring that to the onsite deployment.  And when we find problems, issues we need to solve in the operation phase, we will still get back to the planning phase so that for the next construction time, we will adjust all these issues in the planning phase. So you see that this loop we're actually building around multiple automation tools. And we're using CI, CD pipelines to make sure that this closed loop could run. On page 14, I first want to give you some of the hardware automation we are doing. It is actually when we are doing this huge scale of cloud construction, we realize that it's very important to improve the efficiency and quality of hardware integration. Since any hardware defects will eventually influence the software to deploy on that, and will cause actually difficulties in sourcing all the issues. So we actually, the things we are doing is we develop an automation tools for the full lifecycle of hardware delivery. You can see on this whole process, the block in red, they are all doing by the automation tools. While the block in white, they are manual work. You can see there are actually quite a few manual work we need to do in this whole process. We will do the resource planning automatically. And then we will do the pre-test of hardware in lab automatically. When all is done, we will inject all the data into our hardware low-level design data sheet. And then at the same time, all the hardware will put on shelf, and the workers will work on the connection of all those lines. And then we could just turn on all the switches and servers, and we will do automatic device configuration and testing. And we'll do automatic network connection check. And if we have some, and then if there are some issues we find through these testing, we will have analyzed the result put out, and the workers will do the rectify if possible. And then eventually when all the issues are solved, we will do the automatic delivery. So you can see that with this kind of automatic delivery process, we actually reduce our construction time by one-third. It actually only take us 20 minutes to configure all the devices, and 80 minutes to finish all the testing on the single pool of more than 1,000 physical nodes. So the major challenges of all these process we're dealing with is actually there are all different kinds of interfaces from all different vendors' devices. People who understand about hardware probably know the kind of challenges we have. So we have to design an open framework to easily adapt all these vendor devices. This is something that we are working. And we are also contributing this to the elephant community now. I will show the details in the following slices. So on page 15, there are actually some detailed numbers I want to share with you. We have more than 15,000 issues actually found and solved during our construction. And these two figures actually give you some details. We are comparing different solutions. For the manual solutions, it's like how all these work are doing traditionally. All the work configuration are down manually. And then people will do a spot check, which they choose only 5% of the hardware to do the check. However, even that will cost us like 60 days, almost two months to finish all the hardware integration. For solution C, it is actually something we are doing in early phase of our construction. We're still using the manual configuration, but we're doing some automatic testing. And then we will rectify the whole things manually. For solution B, we are actually doing the manual configuration, but we are doing the automatic testing here and automatic rectify. And solution A is the best, all the things are automatically down. So you can see that the time taken for these different solutions will do a comparison of all these things. And you can see solution A actually gives only five days to do all these automatic work. Another thing you need to consider is also the configuration fault rate. When you do all the configuration manually, the fault rate is about 30%. So when we realized this, we decided that it's very important that we also need to do some automatic configuration and also do some automatic rectify. So for solution A and B, we actually do the automatic configuration, which if you check all the codes, the configuration won't be costing any fault rate. And also when we do some rectification, we actually, when we find there are some issues, we will do the automatic configuration to directly change the fault issue. So you won't see that fault issue appear in the following result analysis. So this actually helps us to hugely reduce the fault rate. The best work we actually do is for solution A that we see zero fault rate for the hardware configuration. On page 16, I also want to share with you the software automation delivery loop we're doing. We're using Jenkins, this open source software, to build up the whole CI CD pipeline. And then we are providing a general port description file for both vendor products and CMCC tools. So you can see that all the tools from vendors and from CMCC, they are put into the same Jenkins pipeline to work with each other. And all the tools, they understand a general port description file. This makes tools from different vendors and suppliers that could work together to finish the whole procedure. So when we have a new version upgrade to our gateway, we will use our automatic tools to help do the hardware configuration and environment preparing. And then we will use vendor supplier's software to do the Veeam building and distributed storage deployment, and also do the interoperability work between them using automatic scripts. And then we will use our automation tools to do the test and eventually give them some report and feedback. But like you said, all these things, they are down under a general CI CD pipeline and a general port description files. Page 17 actually shares some of the results we got for the CI CD pipeline. We now actually are connecting with different vendors' labs, and any version updates from vendors will invoke an automatic deploy and assistant check loop in China mobile slab. So with this one, we are able to continue to deploy and test a vendor open stack for more than 10 times a week. And each one actually only cost us less than five hours. So it actually helps us to iterate very fast and precise. Here I also share some of the numbers we have for different vendors. You can see some of the vendors, they could even iterate less than two or three hours. So my last page is I want to share with you some of the contributions we are actually doing to elephant community. So those things we are doing for CI CD, for the DevOps loops within China mobile style code loop, we also see that if we want to build up this loop, we need vendors' help, we need improvements in the whole community for the automation. So we decided that we need to closely work with open source communities to contribute these back to open source and make sure people understand the value here and also develop their own tools based on this. So for the hardware delivery work, which I mentioned previously, we're actually contributing this to the OPNV CRV project. So this HDV tools actually provide an open framework for hardware check. And with quite easy configuration files so that you could adapt different vendor's devices very easily. And you could find some useful link in my slides. And also about the poor description file. This is actually some saying we already down in OPNV for the past few years, but now we are contributing our general description files to PDF2.0, which means PDF2.0 actually need to evolve to have more illustration for the telco cloud to have more details included. So we're actually helping to contribute the general description files we are using within labs to the PDF2.0. So I also provide some useful link in my slides. And finally that's all. If you are interested in contributing our OPNV work, please also feel free to contact our developers. Thank you and hope you enjoy your time in this virtual event. Bye-bye.


Hello and welcome to the session. My name is Mansi and I'm going to help you with the following question. The question says, find the equation of the circle with center 1 by 2, 1 by 4 and radius 1 by 12. So let us start with the solution to this question. Here we are given center that is hk is equal to 1 by 2, 1 by 4 and radius r is equal to 1 by 12. Now we know that equation for circle is given by minus h the whole square plus y minus k the whole square is equal to r square. So now we simply put in the values of hk and r as 1 by 2, 1 by 4 and 1 by 12 in this equation and we get x minus 1 by 2 the whole square plus y minus 1 by 4 the whole square is equal to 1 by 12 the whole square. Now on opening the brackets on the left hand side we get x square plus 1 by 4 minus x plus y square plus 1 by 16 minus 1 by 2 y is equal to 1 by 144 because square of 12 is 144. Now this implies that x square plus y square minus x minus 1 by 2 y plus now we take constants in one bracket and we get 1 by 4 plus 1 by 16 minus 1 by 144 is equal to 0. Now this implies x square plus y square minus x minus 1 by 2 y plus now we solve this here first of all we take the LCM of denominators of the three terms that is 144 in the numerator we will have 36 plus 9 minus 1 equal to 0. This implies that x square plus y square minus x minus 1 by 2 y plus now 36 plus 9 minus 1 44 divided by 144 is equal to 0. This implies x square plus y square minus x minus 1 by 2 y. Now on cancelling this we get 11 divided by 36 because we have divided the numerator and denominator by 4 so we get 11 by 36 equal to 0 by 36 we get 36 x square plus 36 y square minus 36 x 11 equals to 0. So we say that our answer to this question is that the equation of the circle with center 1 by 2 1 by 4 and radius 1 by 12 is 36 x square plus 36 y square minus 36 x minus 18 y plus 11 equals to 0. So this is our answer to the question I hope that you understood the question and enjoyed the session have a good day.


Hello, I'm Tino, I'm Melanie, and I'm Christina, and we are from ETH at the University of Turing. And we would like to welcome you to our video abstract on our review, the Bar Tintus Suite, which is published in December issue of protein science. Our work focuses on viruses and specifically how viruses engage cell surface receptors and glycans and proteins, and the study is actually structurally, using crystallography mostly, but also functionally, using very functional assays. And my two talented co-workers Melanie and Christina will now guide you through a little animation that we made that shows you how a virus engages the cell surface. There's technology with glycans and also how antibodies can neutralize the virus and prevent it from binding to the cell surface. So in our study there's some membrane with different types of carbohydrates present on the extracellular side and additional actors are spike virus and antibodies. Carbohydrates, which are present on the cell surface, can serve as viral receptors. They can facilitate attachment and entry of the virus. In this review we focused on viruses with stalk-like attachment proteins. Their glycane receptor binding sites are typically located in exposed regions on viral surfaces. Viruses bind to multiple receptor copies at the same time to overcome the low binding affinity by high avidity. So how do antibodies interfere with virus glycane receptor binding? Antibodies typically bind to exposed regions on viral surfaces with high affinity. Therefore, they often overlap or bind sufficiently close to the receptor binding site to block glycane binding. They achieve neutralization partially because they occlude the glycane binding site and partly due to their shear size, which prevents the virus from reaching the receptor. Thank you for watching our video and we hope you enjoyed reading our review. Bye!


Craft presents the Great Guilderslave. The cheese company who also brings you big obs, every Thursday night presents each week at this time, Harold Terry is the Great Guilderslave, written by Leonard L. Levinson. We'll hear from the Great Guilderslave in just a moment. But first, the tip for you men, folks, who love macaroni and cheese. If you hanker for light macaroni with cheese goodness all through and through, better mention craft dinner to the little woman, For with Kraft Dinner, she can make swell macaroni and cheese in just seven minutes cooking time. You see, the Kraft Dinner package holds a special kind of macaroni that cooks tender in seven minutes for the clock. And then you sprinkle the cheese goodness all through it, with the Kraft Grated that also comes in the Kraft Dinner box. You're all set, ready to fork in. Sounds well? It is. Just say to your wife, let's have that quick-made macaroni and cheese. Kraft Dinner. Remind her to buy Kraft Dinner tomorrow. And now let's visit our friend, the great Gildersleeve, who's just arrived home in great humor, for the local paper contained a big write-up and picture of our hero. The latest in a series they've been running and titled, Men Who Have Pushed Summerfield Ahead. Number 89, Trockmorton P. Gildersleeve. Go ahead, read on, Marjorie. Mr. Gildersleeve gained his college education at Princeton, where he was a member of the class of 14. He was one of Princeton's star athletes and musicians, and was selected by his classmates as student most likely to weigh 200 pounds in 10 years. Oh yes, dear old Princeton. Incidentally, Marjorie, do you like the picture of me the newspaper printed? Oh, yes, Uncle. You look positively handsome. Handsome? Oh, no. What do you think of it, Bertie? Just like when their movie starts, only you've got a pretty much fashion he ain't. Oh, is that so? Which star do you mean, Ronald Coleman? No. No? Are you positive? Well, definitely. Tyrone Power? No. Clark Gable? Frederick March? Robert Taylor? No. Um, Cary Grass? Victimature? That's it, now I remember. Who? Victimature? No, sir. Costello, the Everton Costello. Now, if he only had... Excuse me, I'll get it. This is Trockmorton P. Gildersleeve. Who's speaking, please? Now, place yourself for a surprise. It's Brownie. If Brownie? I don't know any Brownies. Which Brown are you? Your old pal, Bob Brown. I just arrived in town for a few days. I thought I'd give you a raise. Well, that was mighty nice of you. If Bob Brown is... I still don't remember him. Well, we'll have to get together sometime.  How about you come right downtown and have a dinner with me? Oh, I couldn't do that tonight, but hold the line a minute, will you? Oh, Bertie, would it be all right for me to invite a guest out for dinner? Yes, sir. The roast is a stretch. You're sure that we have enough of everything now? Oh, indubitably. Only maybe you better ask him to bring his own sugar. Yeah. Hello, Brown. Say, I've got an idea.  Oh, no. I wouldn't dream of troubling you, foe. Oh, that's quite all right. The roast will stretch. Yeah. Come on out. We're at 747 Parkside Avenue. Yes, 747 Parkside. I'll be there, kiddo. By the chimney, I can hardly wait to see you again. Rocky ol' socky. Good luck. Goodbye. It's Brown. It's Bob Brown. I better get out the good linen.  Yes, Bertie. Alira, I go comb your hair. We're having a guest for dinner. Jeepers, every time we have somebody for dinner, I gotta comb my hair. Who is it, Uncle Mort? Well, I can't quite remember, my boy. There were two Bobby Browns in my class at Princeton, and I don't know which one this is. Gee, when you were at Princeton, I bet you were the big noise around the campus, Uncle. No, my boy. I didn't go out for cheerleader. He was more athletic type. He was? What a good story, Uncle Football. No, my boy. I was associated with the water polo team. Gee, how do you play that? Well, a water polo is a sort of a soggy version of soccer.  And what position did you play, Uncle? Well, I had a very important position. I was the assistant business manager. It's all great jumping jeeps. That must be him already. I'll answer it. Where did he phone from? The corner drugstore? Well, guilty, you old coon. How's the kid? Oh, he's a... Oh, you mean me. I'm just Brown, Dandy. I mean, I'm Dandy, Brown. Come on in, won't you? Oh, sure, sure. Hey, Caby, just throw my luggage up on the porch. Well, Rocky, it's great to see you. Uh, uh, uh, uh, uh... uh, uh, uh. Uh, uh, uh, uh, uh, uh. Cisner! How are you, old rascal? You know you haven't changed a ton. I haven't. Oh, no, no, no. No, sir, Reeve. Some of your pompadour slipped down to your lower lip, and some of your chest is slipped down to your belt, but I still know you anywhere. I wish I could say the same about you, brownie, old fellow. Hey, come on in and meet the family. This is Leroy, my... Well, Leroy, you're certainly the image of your old man, aren't you? Lee Roy happens to be my nephew. Oh, yeah. Yes, of course. And this is my dream. Oh, how do you do, Mr. Brown? Why, dearly, you old reprobate. Congratulations, what a beautiful young wife. Marjorie is my niece. Your niece. Oh, yes, of course. Well, I was just kidding. Don't mind me, folks. Well, dinner, sir. Oh, yes. And this is Berger. I know. You're made. Oh, Mr. Brown. He was one of our star athletes. Gee, Mr. Brown, tell us some more things that happened to you and Uncle Morton College. Yeah. You seem to know so much, but Uncle Morton has never even mentioned it. Yeah, and so much has never even happened. Well, I'd love to, kiddies, but I'd better get out in town and register at one of the, uh, hotels. But, uh, couldn't you stay with us? You expect to be here long, Brown? Oh, just a day or two, then off again like a gypsy. Gee, I'd like to travel all the time.  Say, I'd give my IT for a comfy home like this with a big fireplace, couple of swell kids, and a little guest room in case an old friend should show up. Um, Uncle, couldn't we... By the way, Brownie, do you ever run into Eddie Maxwell or Bill Simmons or Clarence Benzer? No, can't say that I have, but I, uh, saw Paul Green in New York last summer. Oh, good old Paul Green. Don't believe I remember him. Oh, he was one of the boys. Now he's in the game game. Game game? Yes, he makes puzzles. Now, there's a great guy. You know, he insisted on me coming out to his Long Island place for the weekend. Uncle Mort, don't you think that we can... Oh, yes, Green, I remember him now. A stocky fella with sort of sleepy eyes. Yeah, that's right. And talking about sleepy eyes, eyes sleepy. Yes, but now it seems there's nothing to do but tattle along to a lonely room. Gee, I can't, Mr. Brown, stay overnight in our guest room. What? Oh, of course, our guest room. I wonder why I didn't think of it myself. You will stay, won't you, Mr. Brown? Oh, now please, Margie, don't call me Mr. Brown. Just call me Uncle Bob.  Ah, you know, this is just too grand of your gildy. I'll just get my luggage. I think the driver left it on the porch.  I'll go get it. Now we'll have time for a few more yarns about college, eh, frocky old socky? Oh, yes, of course, brownie old clowny. You know, when I think of those ivy-clad walls... Wait a minute, hold on there, Brown. There was no ivy on the walls of Princeton. Been back there lately, gildously? No, but... When I think of those ivy-clad walls, I can't help remembering the days of the frost rush. Come on, come on! Excuse me a moment, won't you? Yes, Leroy, what is it? Would you mind helping me, Uncle? What's the trouble?  Cheapers, no, Uncle Bob... Brother, what a memory. I've got a tray full of breakfast, Mr. Brown. Listen, gildly, your friend, show his pleasant company. Yes, pleasant and permanent. He's been here three days already. Bertie, did he give you any hint as to when he's leaving? Well, he did discuss plans for a picnic for the July. Now I've got to fix him a nice poached egg for his breakfast. No, George, I'd like to fix him a nice poached Mickey. Uncle Bob, Leroy, Mr. Brown is not your Uncle Bob. I know, but he's such a swell guy. He hasn't had enough use of his own, so I sort of adopted him. That guy gets more service around here than a cop in a kitchen. Nobody ever feeds me poached eggs in bed. Oh, good morning, Uncle Boy. Oh, hello, Marjorie. At least you're not going to neglect your Uncle Icy. I should say not. How's he feeling this morning? Why, I... who? Uncle Bob. Oh, so you've adopted him, too, eh? Yes. He hasn't any nieces of his own, you know. That Bert hasn't anything of his own but an appetite. Oh, yes, isn't it a shame? That's why I've arranged a nice big formal dinner for the night. Formal dinner? Do you mean I've got to put on soup and fish? Just to listen to that fish eat his soup? Now, Uncle, I've invited Judge Hooker and Rosita Callaghan to meet Uncle Bob. You think he's Rosita's type? He wears pants, doesn't he? What is it, Leroy? Uncle Bob asked me to tell you that he'll be ready to leave right after breakfast. He will, splendid. I've been waiting for this. Yeah, can you have the car already then? Oh, with the doors open and the motor running. Good. He wants you to take him out for a long drive in the country. Yeah, I should have known. Gildersleeve, this is Hickory Hills, isn't it? Yes. During the last war, Camp Hickory was located here. I remember the rifle range was right over there. Hickory was one of the biggest training camps. Well, we've got bigger plans for it this time. Yes, yes, yes, we have. Oh, not you, my associates and I. You know, Gildy, I haven't discussed my reason for being in Somerville. Oh, there was a reason. Oh, yes, yes, and it's very confidential. Yes. See those hills? Yes, yes. Our mining engineers report that they contain one of the richest deposits of manganese in the country. If manganese? It's not so loud. Yes, you know what it is, of course. Oh, it's a very valuable mineral. It's used to toughen steel. Right. It's in great demand now for war production. You mean someone's finally found something of value in them bare hills? Gildersleeve, there's millions in them bare, bare hills. Millions. Brownie, oh, pal. Yes, Gildy? Suppose we were to snoop around and find out who owns this land. Don't you think we could pick it up? Pretty cheap? No, I'm afraid the owner wants a pretty stiff price, Gildy. Oh, you know who it is. I'll say I do.  After all, we were schoolmates together. Princeton, do you mind telling me the owner's name? Not at all, kid. Good. Then who is it? It's me. Oh, hello. It's nice to have you so jolly again. You've been awfully grumpy the past few days. Well, that's all changed now, my dear. Now run along and get into your tuxedo. The guests are due in half an hour. Oh, the guests, of course. It's deep in my heart. You all right, my boy? Are you waiting to see me? Yeah, uncle. I sort of stumbled into something by accident this afternoon and it's got me worried. What is it, my boy? This. I found it up in the attic. Why, that's my old college yearbook. Say, wait till I show this to Bob Brown. He'll get a terrific kick when he reads it. No, uncle, you'll give him a terrific kick when you read it. Leroy, why should I kick Uncle Bob? Because he is Uncle Bobby, an Impostorator. He's a... Impostorator? What do you mean? Look, this book's got pictures of your whole class, including the two Bob Browns who graduated with you. Yes. And one of them was Bald, so that couldn't be him. I remember now. Baldy Brown, he finally graduated. But couldn't Brownie here have been the other one? No, look, the other one was in Indian. Out the first one? Leroy, why couldn't you have found all this out just a few hours earlier? Why, Uncle Morse? Because this humbug just took me out and showed me a reasonable facsimile of a manganese mind. See, he's a faker looker. No, my boy, he isn't looking anymore. He just sold me a half interest in his manganese mind. The great Gildersley will be back with us again in just a few minutes. But first, a note to all you women who are on the alert for thrifty main dishes. You know that macaroni and cheese is a good one. But do you know that you can now make delicious macaroni and cheese in just seven minutes cooking time? The magic lies in a product called craft dinner. You see, every box of craft dinner contains a special macaroni that cooks tender and boiling water in just seven minutes. No need to blanch or bake this craft dinner macaroni. You just drain it, add a little butter and milk, and then sprinkle the cheese goodness through and through with the craft grated that also comes in every craft dinner box. In a jiffy, you have fluffy light macaroni drenched in cheese goodness. Craft dinner will be such a help with the budget. Such a help with getting quick meals, you'd better stock the pantry shelf. Remember that tomorrow when you order. For delicious quick-made macaroni and cheese, ask your food dealer for economical craft dinner. Uncle Mort had to go through with the dinner in honor of his old college chum, Bob Brown. Right now, it's cigars, coffee, and conversation at ten places in the living room. Okay, look at him go after my cigar. Oh, my dearly, Mr. Gillis, leave. It was the most charming dinner, and I think that Mr. Brown is most charming, too. Oh, yes, Miss Callaghan. That fellow could charm a sneak out of his skin. The present company accepted, of course.  I understand that he was once an aviator. You're right, sort of a fly by night. However, I have hopes that the government's going to step in and ground him for the duration. And then the judge turns to the prisoner and says, you may be deaf now, but you'll get your hearing in the morning! Oh, for corn's sake. Leroy, I don't blame you. I'd like to talk to you the moment, too.  Oh, yes, of course, Mr. Gillis. Yes, Uncle, what is it? Leroy, do you want that brown chap to get wise that we suspect him? Gee, no, Uncle. Then put away that junior G-man fingerprinting outfit. But how else can I trap him? Look, I'm going to call in a mining engineer the first thing in the morning. We've got to be sure where we're stepping before we put our foot into it. Well, what do we do now? Well, just keep our eyes open and pretend we're completely ignorant. The way I let myself get swindled, I won't have to do much pretending, either. Uncle, here comes Judge Hooker. Yeah, what is that old hippo? Oh, Judge Hooker, how are things? Hey, Gildy Sleeve, I must admit that I was completely taken by your friend Brown. Uncle Mort was taken, too. Leroy, go away someplace and pass the after-dinner men's. Okay, Uncle, maybe I can get some prints that way. Prints? I was just thinking, Gildy, how nice it is to renew old friendship. Yes, very nice indeed. You know, I'd rather have an old friend than a million dollars. Wouldn't you? Well, I suppose so. Although, there seems to be some rule that you can't have both of them at the same time. Oh, now, Gildy, you mustn't be so hard-bitten. I can't help with this, because I've bitten so hard. Judge, there's something I better tell you, and quickly... Hey, Mr. Brown just left with Miss Callaghan. He's taken her for a ride to the Magnesia Mine. What? Oh, the Manganese Mine. Yeah, he's got her interested, too. She's got to stop before she does anything rash. Come on, Judge, maybe you can help. Here, hon, maybe this'll help. No, Leroy, I've told you before. I don't want that finger-bread outfit. There's Rosita's car parked up ahead. Huh? I wish I knew what this was all about. Yes. Oh, I hope I'm not too late. You divert Brown's attention, Judge, while I talk to her. Eh, Rosita! Oh, my, Mr. Gildy's asleep. You want to talk to her? Hey, what are you two doing here? Eh, Rosita, I must speak to you alone. Judge, you take care of Brownie. Oh, Mr. Gildy's asleep. This has been a most delightful night.  Well, excuse me for asking, Rosita, but why did Bob Brown bring you out here? Well, I thought I had an idea, but I was wrong. He wanted me to buy a quarter-interest and some perfectly wonderful mining property. Oh, my, and did you? Well, it was like this. The moon was so beautiful, and he was so persuasive, and I'm so impulsive. I just couldn't say no. Oh, I never should have introduced you to him. Gildy's asleep. Yes, what is it, Judge? Gildy's asleep. The most wonderful thing has just happened to me. You'll never guess. I bought a quarter-interest in a manganese mine. Be here, Brown. I'm not going to beat around the bush any longer.   Well, I demand my money back, and right now, too. And if you don't... Excuse me, Mr. Gildy, but is Mr. Brown in here? No, Bertie, I'm looking for him myself. Hello. Hello. I was just passing by, and I thought I heard someone paging me. Oh, yes, Brownie. It's a little matter I'd like to discuss if you have a minute to spare. Always have a minute for my little bunkie. What is it, Lord? Well, excuse us for a moment, will you, Bertie? Yes, Mr. Gildy. Now, what was it, pal? Well, I sort of been thinking over that mining deal of ours, Brownie, and I've come to the conclusion that it wasn't very fair of me to jiff you out of a half-interest for only $10,000. So I was thinking... Well, if you're not satisfied, Gildy, I'll take the stock back. If you will. Sure, I'll give you back your check and the $500 profit. If $500 profit? In cash, surely. Now? Just as soon as you hand over your stock, Certificates? Stay right there. Don't move. I'll be back in a flash for the cash. Oh, excuse me, Bertie, get out of my way. Oh, Bertie, are you waiting to see me? Yes, sir. I drew all that money out of my building and loaned like you done told me, Mr. Brown. Good. I have your stock certificate all ready for you. 1,000 shares and 50 cents a share. Here you are. Oh, what a beautiful certificate. And here's the $500, Mr. Brown. Take good care of it now. Yes, don't worry. Now, remember, not a word of this anyway. No. Mr. Gilda Sleeve would be awfully angry if he found out that I let you in on this, too. Don't you worry, sir. My mouth is going to be a closed book. Good. Itch. Here he comes. Hide that certificate. Yes, sir. All right, Brown. Oh, Bertie, will you please excuse us again? Thank you very much, sir. Oh, you've brought your certificates. Good. Now, here's your check back and $500 in cash, old man. Let me have the stock. Yes, yes. Wait a minute, Brownie. Don't rush me into this thing now. But that's what you wanted. Yes, but if a shrewd operator like you is willing to pay me $500 profit on the deal, there must be something to this little mine after all. But, Gilda Sleeve, we just made a bargain. We didn't shake hands on it. No, sir. You're not going to jip me out of my investment, Brownie. I wasn't born yesterday, you know. I'm going to hold on to this stock. Good afternoon, Margie, my dear. Any mail or messages or dividend checks for me? No, no mail, Uncle Mort. But there's been a Mr. Connolly phoning all afternoon. Oh, yes. Bill Connolly. He's the mining engineer I hired to give me a report on the manganese mine. What did he say? I don't know. Uncle Bob took the message. Oh, Uncle Bob did? Well, I'll have to go ask him that. Oh, wait a minute. I forgot. I've got some good news for you. Good news you have? Yes. He's been so anxious to get rid of Uncle Bob. Well, now he's left. Left? But my dear, I don't want him to go now. Are you sure he's gone for good? Oh, yes. Right after he spoke to Mr. Connolly, he phoned for a taxi, tax, and scooted right out. Oh, great jumping jeeps. That can mean only one thing, my dear. Hand me the phone, Margie. Yes. Oh, thank you very much. I've got a warrant. Judge Hooker, the brown is a phony. He's a what? I'll explain later. Judge Hooker's residence. Hello. Mr. Gill... I mean, this is Mr. Gillersleeve. Is he there? Oh, no, Mr. Gillersleeve. He's gone to the bank. Oh, the bank. Thanks. He's not there. But, Uncle Mon, I don't understand. I've been done brown by brown, my dear. He's a crook, a thief, a confidence man, a confidence man. He never went to Princeton. Speaking. Oh, Mrs. Sheehan. This is Mr. Gillersleeve. Is Judge Hooker there? Judge Hooker? Why, he just left. Oh, too bad. Mrs. Sheehan, I want to stop a check that I wrote made out in favor of a Robert Brown. Oh, I'm sorry, Mr. Gillersleeve, but Brown was just in here and cashed that check. No. Come on. Are you sure? Judge Hooker brought him over and introduced him. He cashed a number of checks. Is there any message in case Mr. Brown comes back? Thanks just a thing, Mr. Sheehan, but that bird will never come near your cage again. Bertie, you let me know just as soon as it's Mr. Conley. The expert shows up. There may be a remote possibility that there actually is a manganese in those hills. Yes, Mr. Gillersleeve, I sure hope so. If not, don't take it so hard. Bertie, after all, you didn't lose any money? Yes, I did, too. All my building and loans just gone. And that Mr. Brown had paid your honest fee. Why, Bertie, how could you be so gullible? Oh, I guess it just runs in the family, Mr. Gillersleeve. I'll take that to you. I'd like to lay my hands on that crook. Now, me, I'd just like to cook for him. You'd like to cook for him, Bertie? I'd like to cook for him one day, that's all. Gellersleeve, are you home? Oh, there's Judge Hooker bellowing like a hook. I'm in here, Judge. I'm Miss Callagane. Well, Mr. Gillersleeve, you certainly have fine friends who treat a poor innocent girl. What poor innocent girl? What's her name? Oh, you. I'm terribly sorry about the whole thing, Rosita. Well, you'll be a lot sorry when I file a lawsuit against you. Judge Hooker, I'd like to sue him in your court. Can I make an appointment now? In his court? But Miss Callagane and Rosita, you know I tried to stop you. I... I'm getting in, Mr. Gillersleeve. Folks, that's probably the mining expert I hired. We might as well hear the sad news. Yes, that Mr. Connolly has been waiting for. Hello, Mr. Gillersleeve. Well, Connolly, is there any manganese in Hickory Hills? Now, Mr. Gillersleeve, it's a well-known methodological fact that the presence of manganese and commercial quantities in this region is a geological impossibility. Does that mean I get my $500 back? No, it means that we're all sunk. Very well, Mr. Gillersleeve. You should hear from my lawyers. Gillersleeve, never speak to me again. Now, wait a minute. Oh, I'm sorry if I've upset you, folks. By the way, I stumbled across a curious thing up there. It might interest you. You know where the Camp Hickory rifle range used to be during the last war, Mr. Gillersleeve? Oh, yes. It's on my property. What about it? Well, the hills in back are just chuckful of bullets. Must be 2 or 3,000 ton of pure lead just waiting to be dug up. Yes, sir. What? Does that mean we're going to make a profit after all? Sure, Judge. Come on. All we've got to do is get the lead out. Lord, it's wonderful. Not only is this a profitable business venture, but you're reclaiming vital metal for our war production effort. Yes, Marjorie. And here's some more good news. In order to dig those bullets out, we've got to level off those hills, which means they'll make dandy building lots after we've finished. A more profit?  Leroy, my boy, that's the wrong word. Oh, my mistake, Uncle.  Just let it go. Let it go. Good night, folks. Original music heard on this program was composed and conducted by William Randolph. This is Jim Bannon speaking for the Craft Cheese Company and inviting you to tune in again next week at this same time for the further adventures of The Drake Yielderslave. Economy is mighty important these days, so I'm sure your resourceful homemakers will be interested in a delicious, nourishing food that's wonderfully economical to use. This thrifty food is wholesome parquet margarine, the delicious bread-for-bread made by Craft. Parquet margarine tastes so good, you'll be proud to serve it. And it's an economical source of important food elements, too. One of America's truly nutritional foods. Yes, parquet margarine is one of the best energy food you can serve. What's more, it's a reliable year-round food source of vitamin A because every pound of parquet contains 9,000 units of this important vitamin. So serve parquet margarine at your table. Use it in cooking, too. You see, using parquet margarine is a wise economy because it's as nutritious as it is delicious. So tomorrow, ask for parquet, P-A-R-K-A-Y. Parquet margarine made by Craft. This program has reached you from Hollywood. This is the National Broadcasting Company.