After we had started, I said, “Why don’t you try some of the drawings on the way?” We were passing through the Signal Hill oil-field, amid thunder of machinery and hiss of steam and flashing of headlights of cars and trucks. “It will be interesting to see if I can concentrate in such circumstances,” said Craig, and took one envelope and held it against her body in the darkness, while I went on with my job of driving. After a few minutes Craig said, “I see something long and oblong, like a stand.” She got a pad and pencil from a pocket of the car, and switched on the ceiling light, and made a drawing, and then opened the envelope. Here are the pictures; I call it a partial success (Figs. [26], [26a]):
Fig. 26
Fig. 26a
Here is the next pair, done on the same drive to Pasadena (Figs. [27], [27a]):
Fig. 27
Fig. 27a