644 GALLS 



magnesia, or chalk, to counteract acidity. A convenient 

 prescription for such cases consists of three ounces each of 

 catechu, prepared chalk, and ginger, and six drachms of 

 opium, made, as is most suitable, into either mass or draught. 

 This will make eight doses for a horse, six for a cow, and 

 eight or ten for a calf or sheep. For the horse the dose is 

 given in bolus ; for the ruminant, suspended in starch gruel. 

 Catechu is occasionally applied to sluggish wounds and 

 ulcers, to excoriations on the udder of cattle, and for the 

 several purposes of a vegetable astringent. 



DOSES, etc. For horses, 3ij- to 3-5 f r cattle, 3i y - to 

 ij. ; for sheep and swine, 3*- to 3ij- '> ai *d for dogs, grs. v. 

 to grs. Ix. These doses are administered three or four times 

 a day, with sufficient mucilage or gruel to cover their 

 astringent taste. An infusion is readily prepared for veter- 

 inary purposes by pouring boiling water over coarsely- 

 powdered catechu, digesting by the fire for an hour, and 

 straining. Flavouring ingredients may be added as re- 

 quired. The B.P. orders the tincture to be made with cate- 

 chu, in coarse powder, four ounces ; cinnamon bark bruised, 

 one ounce ; alcohol (60 per cent.), one pint. Compound 

 powder of catechu is composed of catechu, 4 ounces ; kino, 

 2 ounces ; krameria root, 2 ounces ; cinnamon, 1 ounce ; 

 and nutmeg, 1 ounce. All powdered and mixed. For 

 external purposes the powder, infusion, and an ointment 

 are used. 



GALLS 



GALLA. Oak galls. Excrescences on Quercus infectoria 

 resulting from the puncture and deposition of an egg or 

 eggs of Cynips Gallse tinctoriae (B.P.). Nat. Ord. 

 Cupuliferse. 



Home-grown galls from the common oak (Quercus robur) 

 are in some seasons abundant throughout the southern and 

 midland counties of England, but seldom contain more 

 than half the tannic acid found in the foreign. 



The best commercial variety, known as Levant galls, is 

 imported from Syria, Smyrna, and Constantinople ; the 

 light, hollow Chinese, Japanese, or East Indian galls, are 



