because I have them in use,
and they give me satisfaction. There are many others, however, that will
answer equally well. On the whole, any battery possessing quantity and
intensity in a medium degree will answer.

Footnotes:

[Footnote 1: A written description can never convey so true an
idea of anything, as an ocular inspection. I will therefore say
that it will afford me much pleasure to show any member of the
profession the apparatus I am about to describe, at my
residence.]

CHAPTER II.

MODE OF ADMINISTRATION.

I shall describe under this head the _modus operandi_ of administering a
routine galvanic or faradic bath. As it will become necessary to
describe special modes of administration when speaking of the
electro-balneological treatment of special diseases, the describing them
now would only lead to tautologies that I am desirous of avoiding.

Taking our cue from the indications to be met in each case, it becomes
necessary, according to circumstances, to use either the galvanic
current, the faradic, or both successively. As modifications of the
application of the currents we have to consider 1) their intensity; 2)
their direction, and 3) the duration of the application.

The intensity of the galvanic current corresponds directly to the number
of cells from which it is derived. It were vain however to attempt to
express this in figures, because the electro-motive force of different
batteries varies to so great an extent, that a number of cells of some
batteries of low intensity yield a current so feeble as to be barely
appreciable in the bath, while the same number of cells of a battery of
high intensity, furnish a current that few persons can bear without
pain. In thus comparing the Hill cell with the Stoehrer cell, I have
found the ratio to be about as 1 to 2 1/2, i.e., as intense a current can
be derived from twenty-four Stoehrer as from sixty Hill cells--and this
is rather below than above the mark. Were all batteries alike in this
respect, however, still no particular number of cells could be given as
furnishing a current of suitable average intensity for the galvanic
bath, because of the excessively great variations in the degree of
electro-sensibility of different persons. This is so marked that I have
seen persons in the bath tub who could bear no more than six Hill cells,
diffused as was the current from these