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Scientific American, Vol. 39, No. 12 (1878) (1878)
leaf 7
special rheostat, AC, of great simplicity, in ; conjunction with a galvanometer, B, of two circuits, in [+ Fig. 2. Fig. 3. Fig: 5. Fig. 1.—THE POLYSCOPE. mines, powder mills, deep waters, etc. position, M. Trouvé is able to regulate the flow of the stored-up electricity at will. By the ingenious… … made numerous experiments in lighting fected by a powerful and broad up the stomachs of animals at the Ecole knife, bent to the required shape so Pratique of Paris. These trials were as to pass completely beneath and not followed by success, owing to the in- partly lift up even the deepest roots, ©…Internet Archive · Public domain (published before 1931). Free to use for anything.
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