PLATE 



FIG. 149. 



r : ~VN S^S 

 /i!&\ //fcA}: 



FIG. 150. 



Section of the Branchial Cartilage of Tadpole. 





Longitudinal and transverse section of Bone: a, Haver- 

 sian canals; 6, concentric lamellae ; c, intermediate; d, 

 periostial lamellae; e, bone-cells; /, canaliculi. 



FIG. 152. 



FIG. 153. 



Vertical section of Human 

 Molar Tooth: 1, enamel; 2, 

 cementumor crustapetrosa ; 

 3, dentine, or ivory; 4, osse- 

 ous excrescence,arising from 

 hypertrophy of cementum ; 

 5, pulp-cav'ity ; 6, osseous 

 lacuna? at outer part of den- 

 tine. 



FIG. 154. 



Striated Muscular-fibre, separated into fibrilhe 



Involuntary Muscular-fibre. 



Sarcolemma. 



