PLATE V, 



Molar tooth in the follicle semi -diagrammatic, c. Connective tissue of the 

 capsule ; e. position of enamel ; d. dentine ; cm. cementum ; h. Hertwig's 

 sheath ; ft. continuation of Hertwig's sheath ; //-. inflections of Hertwig's 

 sheath around the forming roots ; . partially detached layers of cells forming 

 Nasmyth's membrane ; eo. termination of enamel organ at neck of tooth ; 

 z. odontogenic zone ; p. pulp ; o. odontoblasts. (The epithelial elements are 

 coloured red. x 8.) 



To face p. 316. 



