386 THE ANTELOPE OF AMERICA. 
in all our comparisons. From more constant use, often in rough 
and stony ground, the foot of the wild animal, by continual abra- 
sion, is reduced in size and changed in form, as compared with 
those that are kept in parks where they range but little, and then 
generally on the soft grass. 
There is an entire want of even the rudiment of the posterior 
accessary hoofs found on nearly all other ruminants, situate above 
the useful hoofs. The leg or rather foot, where in other rumi- 
nants these accessary hoofs are attached, is as clean and smooth 
on the Prong Buck as on the horse, and even more so, for there 
is no appearance of that tuft of longer hair which is observed on 
nearly all horses at this place. 
The color of the hoof is black throughout. 
THE GLANDS. 
The remarkable system of cutaneous glands found on this ani- 
mal is a striking characteristic. In the specific description of the 
Prong Buck, the location of each of these glands — eleven in 
number—is given. These secrete a substance of a waxy con- 
sistence, of a saffron color and of a pungent odor, some more 
copious than others. 
Sir John Richardson was the first to notice any of these glands. 
He says: ‘ There is a dark, blackish brown spot at the angle 
of each jaw which exudes a strong hercin odor.”} Although 
Richardson does not seem to have made any study of the glands, 
nor does he even mention them by name, the passage quoted 
points directly to those found below the ears. 
Dr. Canfield seems to have been the first who bestowed any 
serious study upon the glands of this animal. He says, ‘ The 
strong and peculiar odor comes principally from the ischiadic 
glands.” This observation was made on the living animal, while 
Richardson, from the dead subject, ascribed it to the subauricular 
glands. If I agree with Dr. Canfield, that the hip glands are the 
most effective in the emission of this odor, it is because the sub- 
stance secreted is more pungent, for it is less in quantity than 
that secreted by the glands on the head. The single gland on 
the back is large, but not so active on the subjects I have ex- 
amined as some of the others; but in fact each does its part in 
tainting the atmosphere which surrounds the animal. If the 
glands between the toes do not contribute much to the odor we 
observe in the atmosphere, they are sufficiently active to taint 
1 Fauna Boreala Americana p. 267. 
