RUMINANT QUADRUPEDS. 



515 



those which regulate the growth of turbinated 

 shells. The horns of the ox and of the an- 



telope tribes are formed of longer and more 

 continuous fibres, w hich are closely compacted 

 together, and exhibit very distinctly the series 

 of hollow cones of which they are composed. 



The horns of the Rhinoceros^ both of the one 

 and two homed species, grow from the integu- 

 ment covering the nose, to which they adhere 

 without having any connexion with the subja- 

 cent bones. They have a pyramidal shape, 

 and are composed of parallel fibres, resembling 



