316 Faraday's Researches

quantity of electricity is at all increased or affected by the com-
bination of the oxide with the acid (668, 680), still the latter
circumstance cannot go altogether for nothing. The researches
of Mr. Daniell on the nature of compound electrolytes1 ties
together the electrolysation of a salt and the water in which it
is dissolved, in such a manner as to make it almost certain that,
in the corresponding cases of ft& formation of a salt at the place
of excitement in the voltaic circuit, a similar connection between
the water and the salt formed must exist: and I have little
doubt that the joint action of water, acids, and bases, in Bec-
querel's battery, in DanielPs electrolysations, and at the zinc
in the ordinary active pile, are, in principle, closely connected
together.

1 Philosophical Transactions, 1839, P- 27-gnetic arrangement, which, as to its principle,