ver may be distinguished by their violence of exertion, for the
exertions of hysteric motions are feeble, as they are caused by debility;
but those of epilepsies, as they are used to relieve pain, are of the most
violent kind; insomuch that those who have once seen these ineffectual
efforts to vomit in some epilepsies, can never again mistake them for
symptoms of hysteria. See a case in Sect. XIX. 2.

M. M. Blister. Opium. Crude mercury.

9. _Borborigmus._ A gurgling of the bowels proceeds from a partial
invertion of the peristaltic motions of them, by which the gas is brought
into a superior part of the bowel, and bubbles through the descending
fluid, like air rushing into a bottle as the water is poured out of it.
This is sometimes a distressing symptom of the debility of the bowels
joined with a partial inversion of their motions. I attended a young lady
about sixteen, who was in other respects feeble, whose bowels almost
incessantly made a gurgling noise so loud as to be heard at a considerable
distance, and to attract the notice of all who were near her. As this noise
never ceased a minute together for many hours in a day, it could not be
produced by the uniform descent of water, and ascent of air through it, but
there must have been alternately a retrograde movement of a part of the
bowel, which must again have pushed up the water above the air; or which
might raise a part of the bowel, in which the fluid was lodged, alternately
above and below another portion of it; which might readily happen in some
of the curvatures of the smaller intestines, the air in which might be
moved backward and forward like the air-bubble in a glass-level.

M. M. Essential oil. Ten corns of black pepper swallowed whole after
dinner, that its effect might be slower and more permanent; a small pipe
occasionally introduced into the rectum to facilitate the escape of the
air. Crude mercury. See Class I. 2. 4. 9.

10. _Hysteria._ The three last articles, together with the lymphatic
diabaetes, are the most common symptoms of the hysteric disease; to which
sometimes is added the lymphatic salivation, and fits of syncope, or
convulsion, with palpitation of the heart (which probably consists of
retrograde motions of it), and a great fear of dying. Which last
circumstance distinguishes these convulsions from the epileptic ones with
greater certainty than any other single symptom. The pale copious urine,
cold skin, palpitation, and trembling, a