684 GELATIN 



urethra, etc. In conjunctivitis, iritis, and other inflam- 

 matory conditions of the eye, solution of adrenalin chloride 

 ( 1 : 10,000) is very beneficial in controlling congestion, reducing 

 tension and relieving photophobia. In laryngitis, especially 

 in the dog, adrenalin solution, applied as a fine spray, 

 relieves the congestion and diminishes oadema and irritation. 

 In cases of shock and collapse, intravenous injections 

 should be used. For this purpose moderate doses of adrenalin 

 chloride solution (1 : 1000), diluted with at least twenty 

 volumes of normal salt solution (pure sodium chloride 

 grs. 80 in 20 ounces of boiled water), may be injected re- 

 peatedly at short intervals. Crile observed that adrenalin 

 acted upon the blood-vessels after the circulation had ceased, 

 and after experimentally asphyxiating an animal, practised 

 artificial respiration, and at the same time administered 

 adrenalin in saline solution into the jugular vein. By this 

 method animals apparently dead, for various periods up 

 to fifteen minutes, were restored to conscious life. Adrenalin 

 injected intravenously into the femoral or other superficial 

 vein should be valuable in chloroform intoxication, and in 

 cases of sudden heart failure, and collapse from shock. 



DOSES, etc. Adrenalin chloride solution (1 : 1000) by the 

 mouth, horses and cattle, 3J- to 3J V - 5 dogs, Tf\v. to Tl\lx. ; 

 cats, ll\i. to Tf\v. Hypodermieally, half the above doses 

 may be given. Intravenously (1 : 10,000 solution), horses and 

 cattle, ll\xv. to fl\xxx. ; dogs, ll\ij. to H\viii. These doses 

 may be increased in certain cases, but as the maximum 

 doses, which may be administered without danger to the 

 domestic animals, are undetermined, caution should be 

 exercised in prescribing adrenalin. 



GELATIN 



GELATINUM. The air-dried product of the action of boiling 

 water on such animal tissues as skin, tendons, ligaments, 

 and bones (B.P.). 



Gelatin is made from damaged hides and skins, and their 

 parings ; also from bones, limed, cleaned, and boiled, to 

 remove fatty matters, and then crushed and steamed in a 



