Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 386
nition of Thermo-Electricity.—If two rodsof different metals be soldered at their ends, and not incontact elsewhere, on bringing the junctions to differenttemperatures, a current of electricity flows round the cir-cuit made by the two metals. To this current, and thephenomena which accompany it, is… … Fig. 237. ends, and soldered to a bar of bismuth (Fig. 237), a magnetbeing pivoted so as to swing freely between the copper and 368 Electricity. [Book IV. bismuth. After placing the compound bar in the magneticmeridian, so that the needle remains parallel to it, we observe,on heating one junction…
Electricity
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