104 
PHARMACEUTICAL NOTICES. 
then evaporate to dryness, at a gentle heat, to drive off the 
excess of acid. Dissolve the mass in water, filter, and again 
evaporate till a pellicle is formed. By cooling, the salt crys- 
tallizes. Being very deliquescent, it should be preserved in 
glass stop vials; or, what is better, dissolved in a certain 
quantity of distilled water, (say 3i to gi,) in order that 
you may conveniently dose your gold in further diluting it 
for use. 
Formulae. 
For the gratification of some of our distant friends, who 
have not the same advantages that the apothecaries of large cities 
possess, of being able to refer to foreign works or formularies, 
we commence the publication of a series of formulae, embrac- 
ing such as are generally employed and called for by English, 
German, or French physicians practising medicine in this 
country. 
Catechu Lozenges — (Paris Codex.) 
Powd. Ext. Catechu, 1 part. 
Powd. White Sugar, 4 parts. 
Mucilage of Gum Tragacanth, q. s. 
For lozenges weighing 12 grs. 
Dose from 3 to 10 a-day. For sore throat, &e. 
Van Swieten's Liquor — (Codex.) 
Corrosive sublimate, gr. viij. 
Distilled water, gxivss. 
Alcohol, giss. 
Dose from 2 to 8 drachms progressively, in 4 ounces of 
mucilaginous vehicle. Each drachm contains -^th of a 
grain of corros. sub. 
Oil of Phosphorus — (Magendie.) 
Phosphorus, 3j. 
Oil of Sweet Almonds, gij. 
Dissolve, and add a few drops of oil of bergamot. 
Dose from 20 to 30 drops in an emulsion. 
