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Scientific American, Vol. 38, No. 23 (1878) (1878)

leaf 3

An illustration from Scientific American, Vol. 38, No. 23 (1878), 1878, leaf 3
world wide reputation for excel- It has been known for many years that minute particle lence. of undoubted inorganic origin were found in the field of the microscope to be endowed with a constant movement lifelike in its nature. Many early physiologists, auch « containing this style of frame at the… … proper conditions, but not to the same degree. Professor pawls. The proportions of the large and small gear wheels The upper part of the frame is bent back and curved to W. Stanley Jevons, LL.D., M.A., F.R.S., has invented a and the large and small pulleys being as1 to 144, and one serve as a…

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