DISEASES OF FOREIGN SERVICE 47 



you these instances of '* horse sense " — which 

 really does exist — or I shall never get to the 

 end of my labours of to-night. I think I 

 have told you enough to show you that the 

 character of the horse is worth studying as 

 well as its habits and wants. 



I should add a few words about such 

 diseases of foreign, or active service, as surra, 

 which is common in India, and which is 

 conveyed by the bite of a blood-sucking fly ; 

 nagana, or horse-sickness, of Africa, which 

 is carried by a species of the tsetse fly ; 

 the annoyance caused by ticks, the carriers 

 of relapsing fever in man, and many as yet 

 imperfectly understood diseases in horses 

 and in hounds. At the close of this lecture 

 I have arranged to show you a very remark- 

 able series of pictures, which I have called 

 *'some battle scenes from the war with 

 disease,"^ and when we have the actual 

 carriers of these diseases walking and moving 

 about on the screen, and the actual causes — 



1 I am indebted to the kindness of Messrs. Pathe 

 Fr^res for the use of their ultra-microscopical cinemato- 

 graph films with which this lecture was illustrated. 



