DENTINE 



267 



z 



-P 



FIG. 167. Human premolar. Weil process, showing the fine connec- 

 tive tissue investing the odontoblasts. d. Dentine : z. odontogenic zone : 

 o. odontoblasts; p. pulp. (x250.) 



P 



FIG. 168. Tooth of Calf. Ground section, by the Weil process, showing 

 fibres between and around odontoblasts becoming incorporated in odonto- 

 genic zone. d. Dentine ; z. odontogenic zone ; o, odontoblasts ; p. pulp. 

 (x400.) 



