288 MORROW — NOTES Ols" THE CARIBOO. 



doe than in either of the young animals, it not being obliterated 

 when the parts are stretched. The vocal cords and ventricles are 

 also much more developed ; but the body described above is absent 

 from the doe, and very rudimentary in the female fawn. 



" On a consideration of the facts recoaded, we must conclude that 

 the organ described in part by Camper is peculiar to the adult male 

 caribou, the specimen in your possession standing in proof. My 

 dissections given above show that the organ exists in the immature 

 male in a rudimentary form ; but having all the parts necessary to 

 its full development, present, we must conclude, that such develop- 

 ment will advance with its growth. In both adult and immature 

 females it is still more rudimentary, as the body which forms the 

 valve in the adult male was not present in the doe, and was 

 evidently atrophying in the fawn (female)." 



From the above description of the larynx of the young male, 

 together with that which I have pointed out in the adult, it would 

 appear that by some unaccountable oversight. Camper in his 

 account has only described the valve, passing over without obser- 

 vation, the true sac ; but he points out that the female reindeer is 

 without the organ above described ; and also that it is not present 

 in the male fallow deer ; and from the specimen now exhibited, 

 you will also perceive that it is absent in the Virginia deer. In 

 this specimen you will notice the almost bony hardness of the 

 thyroid cartilage. 



I need hardly point out to you that the measurements of the two 

 adult animals show that they were very fine specimens ; but I may 

 draw your attention to the size of the hearts and lungs, as well as 

 mention that the windpipe in all four was very large, and that 

 Camper has noticed this to be the case in his reindeer. 



Inside of the hock of the Caribou, you will observe that there 

 is a patch of hair of a lighter color and somewhat longer than that 

 which covers the skin in its immediate neighborhood, and that the 

 ekin under this patch is slightly thicker than that immediately 

 round it. This spot is usually called a "gland," whether it is 

 strictly so, I cannot say j but at all events it is caused by an 

 enlargement of the hair follicles, has a very strong smell, which 



