The alloy used is composed of 15 parts of bismuth, 8 of lead, 4 of tin and 3 of cadmium; it melts at 70°, and can be experimented with as readily as mercury.
Wheat, barley, oats, beans, clover and other leguminous plants, turnips, sugar beet, mange's, potatoes and grass crops have thus been experimented upon.
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