little cloud, and another and another until I counted the five. Then I lost sight of them.
If the north platform was the port of departure for the cars it seemed as if the south platform was the port of arrival. For now on looking straight below I saw that many cars were standing there, and some arrived as I looked. The bright sunshine enabled me to count them as they stood and to see them coming; and my position in respect of them enabled me to estimate the size of these cars by their shadows much more exactly than that of those which I had been just observing at the other end. A little further observation showed me that the cargo they were laden with consisted of the same sort of substances as those which were so carefully treated on the platform, and in the seed beds, and, finally, in a modified condition exported for use elsewhere. I had evidence already of the care which was given to the preparation and final distribution of these, and I now had evidence that the same kind of care was given to their first selection. Signor Davelli lowered the car to the platform, alighted, and called a man to his side. I alighted at the same time. The man came at once, and it was clear that he knew what he was called for; for he brought with him something that looked like a little glass case or tray, in which