Additional observations on voltaic combinations. In a letter addressed to Michael Faraday, Esq., D. C. L., F. R. S. Fullerian Professor of Chemistry in the Royal Insti­tution, &c. By J. Frederick Daniell, Esq,, F. R. S., Professor of Che­mistry in King’s College, London

Abstract

The author has found that the constant battery, of which he de­scribed the construction in a former communication to the Royal So­ciety, might be rendered not only perfectly steady in its action, but also very powerful ; as well as extremely efficacious and convenient for all the purposes to which the common voltaic battery is usually applied. With this view he places the cells which form the battery in two parallel rows, consisting of ten cells in each row, on a long table, with their siphon-tubes arranged opposite to each other, and hanging over a small gutter, placed between the rows, in order to carry off the refuse solution when it is necessary to change the acid. Having observed that the uniformity of action may be completely maintained by the occasional addition of a small quantity of acid, he is able to dispense with the cumbrous addition of the dripping funnel ; an arrangement which admits with facility of any combination of the plates which may be desired.