g 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. The Morsesystem has also been worked with reversed things were thus shown to be… … polarize and analyze the ray of white light, A D. A double although nitrogen is inert to the magnetic force, and oxygen bility.” convex lens is placed at E, and F G are two movable poles is attracted by it, yet nitric acid is diamagnetic. Lastly, he exhibited the action of the magnet upon flame, by…
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