APPENDIX, 



53 



of the inguinal canal gave a negative result, the abdomen was 

 entered and a full-sized testicle with the epididymis missing was 

 extracted. Recovery was uninterrupted and a complete cure of 

 all his former bad habits resulted at once. Upon incising the 

 testicle, a very fine specimen of the strongylus armatus escaped 

 from its interior, having been apparently about an inch below 

 the surface. 



The strongylus armatus (Prof. M'Fadyean kindly verified the 

 specimen) is not very uncommon in the scrotum of the colt on 



Fig. 19. 



An abdominal testicle partly laid open to show a specimen of the Strongylus Armatus 



in situ. (From a sketch made at the time by Mr Santy, M.R.O.V.S.). 



the exterior of the testis, but its presence in the interior has not 

 often been recorded. The testicle of a "rig" when retained in 

 the abdomen, has no external envelopes and it was with surprise 

 that we saw this worm emerge, as there was not the slightest 

 indication of its presence discernible on the exterior. 



Professor M'Fadyean also demonstrated the presence of 

 spermatozoa. 



No. 21. — This testicle was attached close under the loins by a 

 very short cord so that it was quite impossible to drag it into 



