six o'clock
The rest of the morning passed in listening to Sheep 's elaborate descriptions of the drainage and sewage systems , the water supply , the power and light and heat supply , the tramway system , the parcels system , the postal delivery system , the milk delivery system , all from the geographical point of view . After lunch we spent some time in going all over the town on the tramways . This completed the geographical survey . At six o'clock I was deposited in the hotel just in time for dinner . Presently I prepared to go out to some place of amusement ; but on attempting to leave the hotel I was stopped by the porter , who told me I could not leave the hotel unless accompanied by my conductor . So I spent the evening in writing up my journal . During the day I had noticed that everywhere all the men were dressed in a sort of uniform , and that the colours of these uniforms corresponded to the rank or class of the wearers .