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Scientific American, Vol. 18, No. 17 (April 1868) (1868)

leaf 3

An illustration from Scientific American, Vol. 18, No. 17 (April 1868), 1868, leaf 3
being one of the best of them : everybody present. Pieces of carrots, apples, and such as old as the English needle instrument of Cooke and Wheat- In the annexed engraving, Fig. 1, A is the electric light be- stone. TheMorsesystemhasalso been worked with reversed things were thus shown to be acted… … magnet can do this, therefore, a self-adjuster " is an impossi- po.larize and analyze the ray of white light, AD. A double although nitrogen is inert to the magnetic force, and oxygen bility." If the accidental disturbing cause, produces a great- convex lens is placed at E, and F Q are two movable…

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