N OR MADNESS. 277 



them *. Darluc, Baudot, and Ti«sot, are equally warm 

 in their commendations of this method of treatment. The 

 internal use of mercury as a preventive has had even a 

 greater number of partisans. Sir G. Cobb's famous Tonquin 

 remedy, so highly extolled by Claude Duchoisee, in In- 

 dia t, was prepared from the native and factitious cinnabars, 

 with musk. Turbith mineral, which is a sub-sulphate of 

 this metal, was highly extolled by TissotJ, and has been 

 very generally used among the dogs of this country. Many 

 other authorities of note, as Dr. Thomas Reid, Dr. James, 

 &c. &c., might be quoted, who have extolled the preven- 

 tive efficacy of mercury ; some preferring one preparation 

 and some another: but all have used them to a state bor- 

 dering on salivation, reasoning on the analogy of its pre- 

 ventive and curative efficacy in syphilis. The long conti- 

 nued use of it, and the weight of the authorities that have 

 been favourable to its use, would lead us to suppose that it 

 certainly has some preventive efficacy § ; but as instances are 

 not wantino- of its entire failure in man and beast, under 

 every advantag-e of administration, so it has ceased to be 

 relied on as solely sufficient to guard the constitution ||. 



Arsenic. — This powerful mineral possesses many medicinal 



* " J'ignore que ce remede ait encore manque." — Ch. d'CEuv. p. 148. 

 Nosologia, torn. ii. 



f *' Hommes, femmes, enfans, Indiens, Portugais, Francois, &c. &c. 

 " plus de trois cents personnes, sans qu'un seul, a ete afflige du plus 

 " petit symptom de rage. — Nouv. Meth. pour le Trait, de Rage, 21, 



+ Avis au Peuple, torn, i, p. 156. A celebrated sportsman says, 

 " During twenty-one years that I kept hounds, I never knew it fail." 

 — Treatise on Greyhounds, 2d edit. p. 88.— It was also Mr. Beckford's 

 favourite remedy. So many instances of its failure have, however, 

 since occurred, that it has fallen into disrepute. 



§ Dr. MosELEY appears to be one of the last advocates for the use of 

 mercury extended to a slight salivation : but even he recommends the 

 use of caustic to the wounded part in conjunction with it. 



II Leroux, Oudot, Raymond, Lafond, Majault, Enaux, Chaussier, and 

 MoRVEAU, are neighbouring authors who have denied the efficacy of mer- 

 cury in this case ; and, among ourselves, Drs. Fothergill and Vaughan 

 have followed the same course. 



