294 



COMPOSITION OF FOSSIL TEETH. [BOOK I. CH. VI [. 



which covers them; histologically it is found to be composed of 

 true osseous tissue, presentiug lamellae, lacunae and canaliculi, per- 

 forating fibres, and occasionally Haversian canals ; chemical analysis 

 reveals no difference between it and bone proper. 



COMPOSITION OF VARIOUS FOSSIL TEETH (VON BIBEA 1 ). 



Analysis of Dental Tissues. 



This is conducted according to the methods which have been 

 described for the analysis of bone. 



1 Eeprinted from Watts' Dictionary, Vol. v. r p. 706. 



