When metals in liquids are heated, they are more frequently rendered
positive than negative in the proportion of about 2.8 to 1.0; and
while the proportion in weak solutions was about 2.29 to 1.0, in
strong ones it was about 3.27 to 1.0, and this accords with their
thermo-electric behavior as metals alone. The thermo-electric order of
metals in liquids was, with nearly every solution, whether strong or
weak, widely different from the thermo-electric order of the same
metals alone. A conclusion previously arrived at was also confirmed,
viz., that the liquids in which the hot metal was thermo-electro-positive
in the largest proportion of cases were those containing highly
electro-positive bases, such as the alkali metals. The thermo-electric
effect of _gradually_ heating a metal in a liquid was sometimes
different from that of _suddenly_ heating it, and was occasionally
attended by a reversal of the current.
Degree of strength of liquid greatly affected the thermo-electric
order of metals. Increase of strength usually and considerably
increased the potential of metals thermo-electro-negative in liquids,
and somewhat increased that of those positive in liquids.
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