Durande, in 1790, proposed a mixture of two parts of Sulphuric Ether and three parts of the Oil of Turpentine. It was advised in doses of about f3ss., repeated twice or thrice daily. It has also been highly spoken of by Ritcher, Soemmering, and other continental physicians. Amongst British practitioners, the solvent power of this mixture is generally considered very doubtful; although, in some instances, it has been found useful in decreasing the frequency of the paroxysms attendant on the passage of these concretions, and also in allaying the pain when present. Dr. Copland* speaks favourably of this remedy; and it has been employed, with apparent success, by Dr. Martin-Solon, who advises the above mixture in doses of f3ij.

2751. In the advanced stages of Acute Dysentery, and also in the nervous, typhoid, and malignant forms of this disease, Dr. Copland speaks highly of the value of Turpentine fomentations (ante) applied to the whole abdomen, and allowed to remain on as long as the patient will endure it. Its most usual effects are a most copious perspiration, with burning heat of the skin where it is applied; and, consequent on these, a total remission of the tormina and tenesmus. In Chronic Diarrhoea, the same applications are often of great service.

2752. Against Worms, particularly A, Lumbricoides, and Tnia or Tape- Worm, the Oil of Turpentine is very effectual. It appears to act specifically on the worms, as under its use they are generally expelled lifeless. Dr. Fenwick, of Durham, introduced it to notice in 1811, since which time it has been extensively employed. Dr. Elliotson advises to commence with fss. of the oil, and gradually to increase the dose to fij. - fiij., either alone or in Barley-water. It is best given in some cold vehicle, two or three hours after a meal; if taken on an empty stomach, it is apt to produce vomiting. The patient should remain quiet after taking it, the remedy being then less likely to disturb the stomach.

* Dict. Pract, Med., vcl. i. p. 396. Gaz. des Hopitaux, March 10,

Op. cit., vol. x. p. 729.

Broths and mucilaginous drinks should be taken during its operation. Dr. Mason Good says that the dose for an infant is f3ss. - f3j. in a little milk, and fj. for a child of ten or eleven years old. To an adult, fij. may be given. In the majority of cases, these doses may be given with perfect safety; but in some habits they create a good deal of constitutional irritation. It is in small doses alone, as f3ss. - f 3j. to an adult, that it enters into the circulation, and proves an acrid irritant to the urinary organs, causing strangury, &c. When Ascarides Vermiculares or Thread- Worms are present in the rectum or lower intestines, Turpentine should be employed in the form of enema.

2753. In Diseases of the Genito-urinary Organs, the Oil of Turpentine exercises a powerful influence. In Amenorrha, Turpentine enemas have been employed by Dr. Elliotson* with great success. He relates three obstinate cases (one of them was of eighteen months' standing) in which the use of an enema, composed of fss. of the oil and Oj. of Barley-water, repeated once or twice a day, was attended with a speedy return of the catamenia.