ice a day, be
effectual by compressing their nidus, as well as by the poison of the
mercury.

The clysters should be large in quantity, that they may pass high in the
rectum, as two drams of tobacco boiled a minute in a pint of water. Or
perhaps what might be still more efficacious and less inconvenient, the
smoke of tobacco injected by a proper apparatus every night, or alternate
nights, for six or eight weeks. This was long since recommended, I think by
Mr. Turner of Liverpool; and the reason it has not succeeded, I believe to
have been owing to the imperfections of the joints of the common apparatus
for injecting the smoke of tobacco, so that it did not pass into the
intestine, though it was supposed to do so, as I once observed. The smoke
should be received from the apparatus into a large bladder; and it may then
be certainly injected like the common clyster with sufficient force;
otherwise oiled leathers should be nicely put round the joints of the
machine; and a wet cloth round the injecting pipe to prevent the return of
the smoke by the sides of it. Clysters of carbonated hydrogen gas, or of
other factitious airs, might be tried.

Harrowgate water taken into the stomach, so as to induce six or seven
stools every morning, for four or six weeks, is perhaps the most
efficacious method in common use. A factitious Harrowgate water may be made
probably of greater efficacy than the natural, by dissolving one ounce of
marine salt, (called bay salt) and half an ounce of magnesia Glauber's
salt, (called Epsom salt, or bitter purging salt) in twenty-eight ounces of
water. A quarter or half a pint of this is to be taken every hour, or two
hours in the morning, till it operates, with a tea-spoonful of a solution
of liver of sulphur, which is to be made by putting an ounce of hepar
sulphuris into half a pint of water. See Class IV. 1. 2. 9.

13. _Dracunculus._ A thin worm brought from the coast of Guinea. It is
found in the interstices of the muscles, and is many yards long; it makes a
small ulcer; which is cured by extracting an inch of the worm a day, and
wrapping the extracted part slowly round a bit of tobacco pipe till next
day, so as not to break it. I have twice seen long worms, like a thick
horse-hair, in water in July in this country, which appeared hard and
jointed.

14. _Morpiones._ Crab-lice. The excrement of this animal stains the linen,
and appears like diluted blood.

M. M. Spirit of wine. Mercurial ointmen