safely applied directly to the brain, and that an _induced_ Faradaic
current.

2. _Sick Headache._ The _procuring_ cause of this distressing disease is
involved in considerable mystery. It seems, however, to be largely
dependent on the secretion and discharge into the duodenum of an
improper quantity of bile, and an irregularity in the peristaltic action
of the upper part of the bowels, particularly of the duodenum, in which
that action more or less is _reversed_, and thereby throws the biliary
fluid up, through the pylorus, into the stomach. After a time, the
stomach becomes nauseated by its accumulation; and the head, through
nervous sympathy, is rendered electrically positive in excess, and thus
is made to ache. Yet there are certain characteristics of the disease
which this view does not satisfactorily explain, and which must remain
unexplained until advancing science shall reveal to us more perfect
light.

When this disease has become habitual and periodic, it is very
obstinate, and requires persistent treatment--often for several months.

Take the B D current, with moderate force. Place the N. P. on the spine,
immediately above the kidneys, and treat with P. P. over the stomach and
the duodenum, (lying transversely just below the stomach), three to
five minutes. Treat in this manner about twice a week.

It may sometimes be necessary to treat the head directly. If so, after
the treatment above prescribed, add that prescribed for the head
directly, in _nervous_ headache, with this difference, viz: instead of
seating the patient on the N. P., or placing the same in his hands, pass
it over the stomach and duodenum, unless the former may be already too
positive. In that case, let the N. P. be at the seat.

DEAFNESS.

_The prognosis_ is very uncertain. This infirmity is often cured by our
system, even when of long standing; and often, again, the treatment
fails. The uncertainty arises from the difficulty in determining the
exact pathological derangement.

Take the A D current, mild force. Introduce the ear electrode as the N.
P. when the disease is of long standing, or as the P. P. when it is of
recent origin. Apply the opposite pole to the back of the neck. Treat
five to eight minutes, once a day for three or four days, and afterwards
three times a week. If no success appears within three weeks, it will
probably be vain to expect it afterwards.

NOISES IN THE HEAD.

Treat the same as for deafness.

I