722 GLYCERIN A 



chambers, pharynx, larynx, and other portions of the 

 respiratory membrane, though it is doubtful if they have 

 any beneficial effect beyond the nasal passages and the 

 pharynx. The inhalation most frequently used is moist, 

 warm air, produced from a steam kettle, or, in the treatment 

 of horses, from a hot mash, placed in a capacious nose-bag, 

 or in a large bucket brought under the nostrils, the animal's 

 head and the bucket being covered with light waterproof 

 sheeting. Such inhalations are considered serviceable in 

 catarrh and bronchial congestion, and may be rendered 

 more efficacious by mixing with the moist, warm air a little 

 laudanum, eucalyptus oil, or turpentine. Antiseptic pro- 

 perties are conferred by impregnating the air with sulphur- 

 ous acid, or by the use of creosote, iodine, or iodoform. 

 As in the administration of chloroform for production of 

 anaesthesia, volatile drugs may be conveniently inhaled 

 from a sponge placed in one nostril. Irritability of the 

 larynx and violent coughing are sometimes relieved by 

 spraying the throat with solution of cocaine, or antipyrine 

 with tannin and alcohol. 



Fumigations of gas produced in a limited space are used 

 to deodorise and disinfect stables and other premises ; 

 and to destroy, or cause the expulsion of, parasites infesting 

 the trachea and bronchial tubes. For these purposes, the 

 agents commonly employed are chlorine, formaldehyde, 

 and sulphur dioxide, which is conveniently obtained by 

 burning sulphur (an ounce to the cubic yard of space) or by 

 using sulphur candles. Fumigations of sulphurous acid gas 

 twice or thrice repeated at intervals of three or four days 

 are usually effectual in destroying bronchial strongyles in 

 calves and lambs. Tar fumes, produced by placing tar on 

 a hot metal plate, are also employed. 



GLYCBRINA-GLYCBROLES 



Glyeerina are solutions of soothing astringent or anti- 

 septic substances in glycerin. They are applied locally to 

 the skin and mucous surfaces. Those of carbolic and tannic 

 acids contain one ounce by weight of the acid, mixed and 

 gently heated with five fluid ounces of glycerin. Glycerinum 



