CONTRACTIONS. li 



rectificatus, spirit of wine. — S. V, T. Spiritus vinosiis tenuis, proof 

 spirit^ or half and half spirit of wine and water. 



Temp. dext. Tempori dextro, to the right temple. — T. 0. Tinc- 

 tura opii, tincture of opium ; generally confounded with laudanum, 

 which is properly the wine of opium. — T. 0. C. Tinctura opii cam- 

 phorata, paregoric elixir. — Trit, Tritus, ground to powder. 



Ult. prater. Ultimo pra^scriptus, the last ordered. 



y. O. S. Vitello ovi solutus, dissolved in the yelk of an egg. — 

 Vom. urg. Vomitione urgente, when the vomiting begins. 



Z. A mark in writing that a word is contracted^ as in oz. for 



nee. — Zz. Zingiber, ginger. 



3. Scrupulum, a scruple, equal to 20 grains Troy. — 3. Drachma, 

 I drachm, equal to 3 scruples ; or in liquids the 8th part of an ounce 

 ! Measure. — 5. Uncia, an ounce Troy; or in liquids the 16th part of a 

 wine pint. 



In labelling bottles, boxes, drawers, or pots in a shop, the name of 

 the drug should be left predominant ; while a single letter is sufficient 

 for denoting the technical terms, as radix, pulvis, pilulse, compositus, 

 volatilis, &c. ; simple powders also speak for themselves to the eye, and 

 do not require the addition of pulvis. 



Valerianae r. not Valer. radix. 



Ilpecacuan. r. Pulvis ipec. 



P. ipecacuan c. Pulvis ipec comp. 



T. cantharidis Tinctura canth. 



U. hydrarg. nitr. Unguent, hydr. n. 



It is still more proper, and less liable to error, to denote the j)ow- 

 red simples as the College itself does, by the adjectives, ir'ihis, or 

 ntritns, and not by the substantive pulvis, which renders them liable 

 to be confounded with the compound powders : tritus being used when 

 the substance is easily powdered, and contritus when it requires great 

 labour, or is reduced to a particular fine powder ; the con being used 

 as an intensive adjection. 



And here it may be noted, that for reducing acrid substances as 

 (uphorbium, and the like, to powder, the method used by the fire- 

 work makers in powdering charcoal may be advantageously emj)loyed. 

 They put the charcoal into a strong leather bag, and having tied the 



•{►ening very tight, l)eat it with a mallet: then leaving it for s(»me 

 lime to settle, the bag is ojjened, and the powder run into a drum 



ieve with a^ little disturbancv as ])ossibl('. 



