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Scientific American, Vol. 38, No. 12 (1878) (1878)

leaf 8

An illustration from Scientific American, Vol. 38, No. 12 (1878), 1878, leaf 8
° (b. p. 280°-400°), 81°95 per of a glass rod charged with positive electricity; the other is cutters will not answer the purpose, as the idea is to lestroy cent; paraffine, melting point, 52°-57°, 42°79 per cent; as- charged in a similar manner with a stick of resin charged the weeds and not… … marshes of the Paraguay, and the sand to mistake or detract from their evidence. banks in the La Plata, feeding here on M. Rameaux has found this arrange- land crabs, there on rats, guinea pigs, ment in all cases more sensitive and sure than a carefully apparatus similar to the cotton stalk pullers…

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