i 7 8 



EVOLUTION AND DISEASE. 



on human anatomy the tragus is referred to as hircus 

 or tragus (Latin hircus =. goat), on account of the hairs 

 growing from it. 



It is unnecessary for me to enter into the question of 

 the vestigial nature of man's pinna ; this has been again 

 and again pointed out and admits of no doubt. TLike 



FIG. 94. A malformed auricle with a sinus in the helix. (After 

 Paget.) 



vestigial organs in general it is very variable. The pinna 

 may be absent, is often malformed, presents accessory 

 parts and not unfrequently is occupied by some con- 

 genital fistulse and recesses. 



It is by no means uncommon to find in the helix, at the 

 spot marked 4 in fig. 93, a small sinus, or recess, capable 



