514 Veterinafy Medicine. 



(Moore, Haring, Cady). The increase under chloroform as com- 

 pared with ether, is probably due to vaso-motor dilatation so that 

 it may be in part set down to the same cause as in the hot bath, 

 disease of cardiac valves, oedema, etc. 



Among diseases that lead to extreme loss of red cells must be 

 named : — Anthrax, Texas fever, protozoan ictero-hsematuria in 

 sheep ; dourine, surra, nagana, mal de Caderas and paludal in- 

 fections in dogs and horses. In these we have the destructive 

 action of the microbe, bacillus or protozoon, on the red globules 

 direct. From the amount of haemoglobin passed, haemoglobi- 

 nuria should be included in this list, yet the number of red cells 

 (8,421,000), sixteen hours after the attack was quite up to the 

 normal in the case reported by Moore, Haring and Cady. 



From this cursory review of the different agencies affecting the 

 number of the red blood- cells, it will be seen that a comprehensive 

 study of the case, its stage, grade and attendant circumstances, 

 is necessary to a diagonsis from the mere count of the red glob- 

 ules. Yet in certain cases of doubt, and in reference to internal 

 diseases especially, it will come in as a valuable corroborative 

 evidence. 



