U. S. B. F. — Doc. 888. 



Plate XXII. 



FIGS. 1 TO 16. -TRANSFORMATION SIZES, NATURAL SIZES 



1, Bullfrog: 2, mink frog; 3, gree 

 frog; 7, pickerel frog; 8, wood f._„, . 



toad; 12, Pacific tree frog; 13, swamp .,, ...rx^. ,.^^, ,-^, ^,,^. 

 (Photos of 2, 4, 5, 9, 11, 12, 13, 14 from spirit specimens.) 



en frog; 4, western frog; 5, soutinern leopard frog; 6, leopard 

 frog; 9, narrow-moutfied toad; 10, common toad; 11, spadefoot 

 swamp-cricket frog; 14, cricket frog; 15, tree toad; 16, peeper. 



