U. S. B. F. — Doc. 



Plate XVII. 



FIG. 1.— COMMON TOAD EGG STRI NGS CURLED ABOUT VEGETATION. 

 (After Wright, Carnegie Publ. No. 197.) 



FIG. 2.— THE STALKED EGGS OF THE DESERT 

 TREE TOAD ('). 



FIG. 3.— AN EGG AREA OF THE PICKEREL FROG Airo TWO MATED 

 PAIRS; EGG MASSES ATTACHED TO VEGETATION AND STICKS ON 

 THE BOTTOM. 



(After Wright, Carnegie Publ. No. 197.) 



