PLATE XIX. 



FIG. 143.* 



FIG. 144. a. 



Connective-tissue dement*. From the Frog's Thigh : 

 a, contracted cell; 6, ramified; c, d, motionless gran- 

 ular cells: /, fibrillse; g, connective-tissue bundle; 

 h, elastic fibre net-work. 



Development of the enamel: a, dental ridg 

 b, young layer of epithelium; c, deep layer; 

 enamel germ ; e, enamel organ ; /, dental germ. 



FIG. 146. 



White Fibrous Tissue, from Ligament. 



FIG. 147. 



Yellow Fibrous Tissue, from Ligament um Nuchse 

 of Call. 



FIG. 148. 



Fatty Tissue. 



