OF VETERINARY MEDICINE. 261 



vice to any mare that has once suffered with her eyes. A consid- 

 eration of the future of our horses would demand the (Hsuse of 

 all sires that are unlicensed and the refusal of a license to any 

 sire that has suffered from periodic ophthalmia or any other com- 

 municable disease. 



Treatment. — Treatment is not satisfactory, but the same 

 measures as are useful in external ophthalmia help some in the 

 periodic form. The affection should be treated with purgatives, 

 followed by diuretics and cold applications to the eye. To cause 

 dilatation of the pupil inject a solution of atropin (2J grains to 

 the ounce ) three or four times a day. If the pupil does not con- 

 tract after a few days, then use calabar bean. Give soft food, 

 keep the animal in a cool place and let him rest. This will ward 

 off the opacity for a time. During the convalescence iodide of 

 potash will help to absorb the deposits, but the animal wnll go 

 blind in time. Some doctors say that surgical treatment is the 

 right thing and recommend tapping the eye with a fine-bladed 

 knife and squeezing out twenty-five per cent of the aqueous hu-, 

 mor. This, at least, would relieve the intraorbital pressure.' 

 Following the operation give a dram of iodide of potash three 

 times a day for a month or six weeks. 



The prevention of the disease is the great object to be aimed 

 at and this demands the most careful breeding, feeding and 

 housing. The animals should be placed in a high and dry loca- 

 tion and kept off the lowdands. The improvement of the land by 

 drainage and cultivation, however, should be the final ami. 



SUX STROKE, INSOLATION, COUP DE SOLEIL, THER- 

 MIC FEVER, HEAT STROKE, COUP DE CHALEUR. 

 HITZSCHLAG, SONNENSTICH, ICTUS SOUS, 

 HEAT PROSTRATION, SIRIASIS, OVER- 

 HEATING. '' 



Definition.— Under these various names the diseased condi- 

 tion, in which an. excessively high temperature, nervous prostra-j 

 tion, insensibility, coma and death are the prominent features, 

 occurs. 



