“co. HYD—HYD 
. Monia, and nitric acid; properly prepared, is a protoxide 
of mercury. Preferred by Mr. Abernethy to the red sul- 
phuret, for purposes of fumigation, because it docs not 
yield any oppressive vapour. Saunders proposed it, in licu 
of Plenck’s remedy. Dose, gr. i to grs. iij, in pill, twice 
aday. Not much used in the United States. 
Orric. Prer. Unguentum oxyd. hydrarg. ciner. E. 
Formula— J Hydrargyn oxyd. cinerei, grs. xv 
Micz panis, 3j 
Mellis Ge 8. 
Make a mass, to be divided into 30 pills— 
dose, 1 or 2, three times a day. 
No. 311.—Hyprarcrri Oxypum rusrum. L. Ox- 
ydum Hydrargyri. D. Red oxyd of mer- — 
cury. (The precipitate per se of the old 
_ chemists.) 
Cabinet specimen, Jeff. Call. No. 355. 
John Hunter, 
Prescribed in venereal cases. When this pill did not affect — 
the mouth in a weck’s lapse, he repeated it mormng 4 
evening. If experience proved that the patient’s mouth 
was not affected by the use of it, he increased it to two 
No. 312..—HypRARGYRI SULPHURETUM RUBRUM. 
4 L.& U.S, Sulphuretum Hydrargyri rubrum. 
D. (Formerly Hydrargyrus suiphuretus ru- 
ber. P.L. 1817. Cinnabaris factitia, 1745-) 
Red sulphuret of mercury, (formerly Cin- - 
Cabinet specimen, Jeff. Coll. No, 356. : 
