456 Dr. J. E. Gray on the Wart-Hogs. 
rate them by any of those characters, and at the same time 
proved that the characters proposed were not sexual, but only 
accidental variations to be found in specimens from the same 
locality and killed at the same time; and I felt convinced 
that if any of the authors named had had the opportunity of 
examining a similar series of skulls, they would have come to 
the same conclusion as M. de Blainville had come to, from 
the opportunity of examining very few preserved skins or 
living animals. 
If the difference in the ears pointed out by Dr. Sclater 
proves to be permanent in all ages of the animal, and the pe- 
culiarity of a species which has not been before observed, it 
als. 
Lately almost all Dr. Sclater’s papers on mammalia have 
been criticisms on my communications. As soon as these are 
| qnie he generally comes to examine the specimens which 
have described, consulting at the same time my assistant or 
attendant on the subject, to all which I can have no objection 
if they add any thing to the scientific knowledge of the subject ; 
but they often end in the statement of a point I had already 
examined and not considered worthy of recording, or, from his 
want of experience in the study of mammalia (for birds have 
been his chief study), in what I consider a mistake. I am quite 
willing to leave these questions for future zoologists to decide 
who was right. 
i Ray E ane tt 
