(From vol. v, 2nd edit., 1826.)
(It should be carefully freed from the sulphuric acid often mixed with it, by means of re-distillation over the chloride of sodium, or (better) it may be precipitated by muriate of baryta, and, after being thus freed from the sulphuric acid, redistelled.)
For medicinal use one drop of it is first diluted by means of too succussion with 100 drops of diluted alcohol (made of equal parts of distilled water and strong alcohol taken together ten time), and of this one drop is to be twice successed (with two strokes of the arm) with 100 drops of undiluted alcohol (1/10000th), and then of this one drop is to be again twice shaken with 100 drops of alcohol (1/1). One globule the size of a poppy of a drop, for with one drop 200 such globules are sufficiently moistened. Yet this million-fold dilution, although administered in such a small volume, will be found in many cases to be still too powerful when muriatic acid is homoeopathically indicated, because this medicine possesses a high degree of efficacy.
Although a tolerably homoeopathic employment in suitable morbid states can be made from the following observed alterations in the healthy, yet it would be desirable to possess a more complete proving of it as to this pure effects.
[HAHNEMANN’s fellow-provers were GUTMANN, HARTMANN, HAYNEL, LANGHAMMER, STAPF, WISLICENUS.
Symptoms were obtained from the following old-school authorities:
CRAWFORD, in samml. f. prakt. Aerzte, xv, 3.
DU MESNIL, in sachse, Hufel. Journ., xxviii, vi. Hufeland’s Journal xviii, iii.
HUMBOLDT, Ueber die Reizbarkeit der Faser.
LETOCHA, in Hufel. Journ., xviii, iii.
RAMMAZZINI, De Morbis Artificum. Samml. f. prakt. Aerzte, xv, 3.
SCHAEKEL (reference not given).
SCHMIDTMULLER, in Horn’s Archiv, ix.
THEINER, in Annalen der Heilkunst, 1811, April.
WESTRUMB, in Sachse, Hufel. Journ., xxviii, vi.
The 1st edit. Has 274 symptoms, this 2nd edit. Only 5 more.]
Whirling in the open air and unsteady in walking (aft. 1.1/2 h.). [Gn.]
Whirling in the head, more so in the room than in the open air, with dimness before the eyes. [Stf.]
Headache in the forehead and occiput, which, especially that in the forehead is aggravated by sitting up in bed.
Tearing pain in the forehead.
5. Pressive pain from within outwards in the forehead and temples (aft. a few m.). [Ws.]
A pressive stupefying pain in the forehead in every position of the body, which went off by touching (aft. 1.1/2 h.). [Lr.]
Stupid in the head, in the forehead. [Stf.]
Long, frequently recurring stitches from both frontal protuberances towards the middle of the forehead (aft. 7 h.). [Htn.]
Headache like a boring in several places in the vertex, from the bones of the skull into the brain (aft. 10 h.). [Ws.]
10. Long tearing pressing pain darting by shocks into the forehead towards the right orbit (aft. 5.1/4 h.). [Htn.]
Aching pain in the left temple (aft. 4.1/4 h.). [Gn.]
Aching pain from the middle of the brain out towards the left side of the forehead (aft. 6 h.). [Gn.]
Aching pain in the front of the brain, increased by moving the eyes (aft. 3 d.). [Gn.]
Tensive pressive pain spreading from the occiputal bone forwards through the brain and ending in the forehead (aft. 2.1/4 h.). [Gn.]
15. Jerking beating tearing pain from the left half of the occiput to the forehead; soon followed by a similar pain in the right half (aft. 7 h.). [Htn.]
Heaviness in the occiput, as if it drew her head backwards, or as if the anterior cervical muscles had lost their firmness (aft. 1.3/4 h.). [Gn.]
Heavy feeling in the occiput, woth drawing stitches there, more on the right side, close to the nape, with swelling of a gland in the nape, which is painful when touched; at the same time heaviness and vertigo in the head, with dimness of the eyes as when intoxicated (when sitting) (aft. ¾ h.). [Htn.]