172 
ON GOUT PAPER. 
zinc or basic sulphate of zinc, containing only from 64 to 
67 per cent, of the oxide. Since that period manufacturers 
had prepared the true oxide of zinc according to the Phar- 
macopoeia ; but he was given to understand that in a great 
majority of cases the retail Pharmacutists still purchased the 
impure preparations, either on account of their being 
cheaper, or because the colour and appearance is more in 
accordance with what they had been accustomed to. The 
oxide of zinc made according to the Pharmacopoeia has a 
slightly yellowish colour, while the other preparations are 
white. — Trans, of the Lond. Pharmaceutical Society. 
ART. XXXIV. — ON GOUT PAPER. 
By M. Buchner. 
Michaleskul's gout paper is thus prepared: Three 
drachms of gum euphorbium and six drachms of cantha- 
rides, are powdered and digested with four ounces of spirit 
of wine of ninety per cent., and three drachms of Venice 
turpentine are then added. Fine paper is then to be dipped 
into this tincture and dried in the air. At Jassy, this paper 
is sold under the name of u Papier Faiard," or " Papier 
Schemik." According to Mohr's Pharm. Univ., four 
drachms of cantharidesand one drachm of gum euphorbium 
are to be digested with five ounces of highly rectified spirit 
of wine : to the filtered liquid are added one and a half 
ounces of Venice turpentine, and two ounces of resin. These 
being melted together, and mixed with the tincture, are to 
be spread thinly on the paper whilst warm. According to 
the Wurlemberg Pharm., one and a half ounces of euphor- 
bium, and the same quantity of cantharides, are digested 
with four ounces of highly rectified spirit of wine for eight 
days, and the tincture then melted witrTseven ounces of 
pitch, three ounces of resin, three drachms of turpentine, 
