TREATMENT. 287 



The manner in which the disease is spread is not yet ex- 

 plained ; but a more intimate study of the hfe-history of the 

 parasite will doubtless be fraught with significant results in 

 this aspect of the subject. While reasoning from analogy m 

 the history of animal forms of the lower classes, it will be ad- 

 visable that due regard be had to the nature of the drinkinor- 

 water, which, if possible — and we appreciate the difficulties 

 encountered in tropical countries — should not be procured 

 from unprotected stagnant storage. Much protection would 

 probably be aftbrded if the boiling of such, where no other is 

 attainable, could be carried out. 



As to the success of medicinal treatment little has been 

 made known. The insidious nature of the attack would appear 

 to admit of much constitutional damage being done before 

 treatment is adopted ; thus prophylactic measures are espe- 

 cially called for ; while, on the principle of deleteriously affect- 

 ing the parasite, the administration of such agents as carbolic 

 and salicylic acid, in frequently repeated doses, would be 

 worthy of trial. 



B. CONSTITUTIOXAL DISEASES. 



CHAPTER XII. 



OF THE NATURE OF THE GENERAL DISEASES INCLUDED IN 

 CLASS B. 



Those diseases — some of which, as more particularly affecting 

 the horse, have been so far considered, and regarding which it 

 was agreed to consider under the terms of ' general ' or ' systemic' 

 diseases — comprehended in Class A, represented by, and in- 

 cluding the specific febrile diseases and some allied affections, 

 may all be looked upon as largely, if not entirely, resulting 

 from, or developed in, the animal body through the direct in- 

 fluence of agencies acting from without. 



In contradistinction to these, it is now intended to consider 

 in a similar manner certain other diseases, ' general ' or ' sys- 

 temic,' in the sense that their manifestations of deviations from 

 normal or healthy condition are not confined to any particular 

 organ : but differing, however, from the already noted general 



