BEHAVIOR OF ANURA TOWARD COLLOIDAL DYES 



35 



TABLE 9 

 Feeding experiments on adult frogs and toads 



into the intestinal canal, so that the chances of its absorption by 

 the mucosa will be favorable. The frogs and toads were fed by 

 means of a small pipette holding about 1 cc. of dye. In the case of 

 the larger animals this may be regarded as approximately the 

 amount given at each feeding. 



