EMPHYSEMA. 135 



more powerful than, our ravens, waiting for the 

 dog's demise. It was a wonder to me that they had 

 so much patience, for before now I have seen a 

 brace of them attack a wounded steinbok and harass 

 it to death. However, the corbivans had not 

 molested my poor dog, nor had some dozen South 

 African griffon vulture (Gyps Kolbit) that were 

 sitting in his immediate vicinity, redolent with a 

 gravity in their manner only to be expected from 

 the members of a coroner's inquest. 



When I looked upon the greyhound, I was 

 more astounded than I had been in my life before. 

 Its body was swollen up to twice, possibly three 

 times, its original size, and on passing my hands 

 along his flanks the air that was accumulated 

 beneath produced a crackling sound, not unlike 

 electricity in a new karross, but a great deal more 

 distinct. It was evidently a case of emphysema, 

 but what had produced it was a question I could 

 not answer. I have known animals shot through 

 the lungs get it, but in such cases there was a 

 visible cause, although a very extraordinary one ; 

 still, there was a cause. In the case of the dog 

 I was not aware of one, nor could I discover any. 



