MORROW — NOTES ON THE CARIBOU. 295 



I arrive, relative to their structure and functions is, that they are 

 not glandular, in the correct meaning of that term, an opinion 

 which coincides with that which you previously expressed. 



Caribou Buck, 8 Months Old — Hind Foot. 



" The cleft in the hoof is very deep, and the phalanges are loose 

 and movable, the only connection of any consequence existing 

 between them being formed by the skin covering the hoof. It forms 

 a broad web between the phalangeal bones, thus affording a broad 

 surface with which the animal may rest upon the ground ; the cleft 

 in the hind foot measures from metecarpo-phalangeal articulation, to 

 the tip of hoof, 7J inches. In the fore foot, it measured 7£ inches, 

 the free border of the web in both feet is found at the insertion of 

 the nails or hoofs into the skin, the length of web being about 5 

 inches, greatest width at free border 1£ inches, diminishing gradu- 

 ally upwards, the anterior and posterior walls of the web are separated 

 by an interval filled with areolar tissue, and a small proportion ot fat. 



" About one and a-half inches above the edge of the web in its 

 anterior wall, at a point midway and opposite to the articulation of 

 the first and second sets of toe bones is found a circular opening or 

 foramen, large enough to admit the barrel of a goose quill, it gives 

 passage to a tuft of hairs lighter coloured than the surrounding ones, 

 which are slightly smeared or stiffened with smegma, a probe intro- 

 duced here discloses a passage or " cul de sac" continuous with this 

 opening, having a depth of one and a quarter inches. On dissect- 

 ing the skin from the underside or sole, and removing the surround- 

 ing tissue, the " cul de sac" was exposed, extending upwards and 

 backwards between the proximal phalanges, approaching, but con- 

 tracting no adhesion to the skin of the sole, and terminating at a 

 point corresponding to the articulation of the dew claws with the 

 splint. 



" This organ presents the appearance of a fleshy tube with thick 

 walls, and a rounded blind extremity like that of a small test tube, 

 flattened on its posterior or under side, convex on its upper or anter- 

 ior side, about one and a-half inches in length below, somewhat 

 shorter above, its circumference being about three quarters of an 



