Philosophers in other countries hastened to repeat and vary these experiments. Fowler found that when the circuit was completed by the eye, the contact of the metals produced the sensation of a flash of light; and Robinson remarked the acid taste, when the tongue was used between the metals, to which he also attributed the peculiar taste of porter when drank from a pewter vessel. It may be added that Sulzer, as early as 1767, described the Influence upon taste caused by the contact of different metals with each other and with the tongue; results of this kind were pursued with more eagerness than nature seemed willing to gratify, and the influence of Galvanism on the senses of smelling and hearing, which Cavallo thought he had observed, have not been verified, or rather have been disproved.
The interesting researches of Galvaul having acquired such extensive notoriety (See 'Phil. Trans.,' 1793), introduced him to the pleasures and the troubles of an extensive oorrespondence. In 1797 Galvaul made a voyage along the shores of the Adrlatio for the purpose of confirming his notions un animal electricity by experiments on the Gymnotus, from Alhich he concluded that the brain contributed to produce the observed effects. His wife, who had proved herself a
sensible and an affectionate woman, died soou after his return, a loss which lie seems to have felt very severely. His afilictious were increased during the French occupation of Italy ; he was expelled from the offices which he held, because he refused the prescribed oaths when Bologna formed a part of the Cisalpine republic. Ilia pecuniary circumstances at this time, as well as his health, were in a very low state, and shortly after his restoration to his former offices he died, in 1793. Galvani gave his name to the department of elec tricity which originated from these experiments, though Its early progress was due in a much greater degree to his contemporary, Volta, by whom piles were first constructed for increasing the intensity of the electricity produced by a single pair of plates.