yf 



Plate III. — Connective tissues of the frog. 



A, Tendon ; B, pigment ceils in the skin, seen through 

 epidermis. 



r., Cells ; ft.con., pigment cell with the pigment contracted ; p.c 

 pigment cell with the pigment extending into the process. 

 iv. f., while lll.nes. 



