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Scientific American, Vol. 81, No. 22 (1899) (1899)
leaf 4
the lower ball onds. I do not think that prefer covered with the bearing plate, and both plates and balls can be lifted there is any other fourth culture, and after they out. The reverse of this process allows the ball bear- order lens in our service have eaten the food to ings to be returned to… … vessels for the trans- spherical reflectors. It poration of troops, is designed to make a © 1899 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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