about two o'clock
What for ? '' `` We 're going to take the picture machine up in the airship , and get some photos from the sky . I expect to make some films from high in the air , as well as some in the regular way , on the ground , and I want a little practice . Come around about two o'clock , and we 'll have a trial flight . '' `` All right . I will . But do n't let my wife know I 'm going up in an airship again .