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Scientific American, Vol. 97, No. 22 (1907) (1907)

leaf 9

An illustration from Scientific American, Vol. 97, No. 22 (1907), 1907, leaf 9
after a meal the menu of which included soft- site number (usually seven) of pieces has been cut boiled eggs. Take an egg shell and trim it with scis- and put into place in the form of a thimble-shaped sors so as to reduce it to.a half shell. In the hollow cell. This cell is then partially filled… … position, at some distance from the eye, favors the fitted into the hole in a reel of cotton, a pipe stem, localization of the luminous pencils in the crystalline or some such homely article. But if the reader will lens. Those which are emitted by the marginal parts take the trouble to examine…

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