PLATE IV. 



Tooth germ of Kitten. A drawing by the author from a preparation by 

 Prof. Milroy. x 1000. 



S. Stratum intermedium ; a. ameloblasts ; e. enamel ; / Tomes' processes ; 

 m v outer ameloblastic membrane ; w 2 . inner ameloblastic membrane. 



To face p. 130. 



