U. S. B. F.— Doc. 



Plate XIX. 



FIG. 1.— EGGS OF PEEPERS LAID 

 IN THE AQUARIUM. 



(After Wright, Carnegie Publ. tJo. 197.) 



FIG. 2.— TWO EGG STRINGS OF 

 THE TOAD; A STRING FROM 

 EACH OVIDUCT. 



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



