H 



DIAGNOSIS. 



\\ursv will assuredly t;rl up and down frc- 

 (jucnth-, whcTC-as in jjain cunnc'ctcd with the 

 I'L'spiratorv tract it will rarely, if e\er, lie 

 down until the final stages. If the pain be 

 connected with brain disease, there will be ad- 

 ditional e\idence uf loss of sense accompanied 

 by extreme dilation or extreme contraction of 

 the pupil of the eye, unaffected by any change 

 in the amount of light, or only partially there- 

 by alTected. If the pain is in connection with 

 the spinal column, there will be inability to 

 rise, or at least a very uncertain gait, if the 

 animal still retain the power of rising. If 

 the pain be connected with the urinary or 

 generative organs, there will always be either 

 straining or some characteristic alteration of 

 the nature of the discharges. 



It must not be forgotten that the previous 

 liisilory of the patient is very frecjuently a 

 great aid to diagnosis. Especially is this the 

 case when the animal is known to have been 

 recentlv in contact with some specific con- 

 tagious disease, or where disease is already 

 existing in the neighbourhood. Careful in- 

 quiry should always be instituted to find out 

 exactly the conditions to which the horse has 

 been recently exposed, and also as to th(; 

 amount and character of food, water, and 

 exercise. By coupling the history of the 

 animal with the information contained in the 

 c.ilumns of the chart, devoted to the causes of 

 disease, a very valuable corroboration can fre- 

 cjuently be made of the diagnosis. 



