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 tributions to the Philosophical Transactions, he very properly consulted that gentleman before he carried it further. Besides which it was, as a research, a physiological quite as much as a chemical inquiry.

Professor Redwood was one of those scientific men who are addicted to tracings and curves. You are familiar—if you are at all the sort of reader I like—with the sort of scientific paper I mean. It is a paper you cannot make head nor tail of, and at the end come five or six long folded diagrams that open out and show peculiar zigzag tracings, flashes of lightning overdone, or sinuous inexplicable things called "smoothed curves" set up on ordinates and rooting in abscissæ—and things like that. You puzzle over the thing for a long time and end with the suspicion that not only do you not understand it but that the author does not understand it either. But really you know many of these scientific people understand the meaning of their own papers quite well, it is simply a defect of expression that raises the obstacle between us.

I am inclined to think that Redwood thought in tracings and curves. And after his monumental work upon Reaction Times (the unscientific reader is exhorted to stick to it for a little bit longer and everything will be as clear as daylight) Redwood began to turn out smoothed curves and sphygmographeries upon Growth, and it was one of his papers upon Growth that really gave Mr. Bensington his idea.

Redwood, you know, had been measuring growing things of all sorts, kittens, puppies, sunflowers, mushrooms, bean plants and (until his wife put a