COS 



THE AMERICAN NATURALIST [Vol. XLIII 



worms and other insects for three months and that the 

 cutworms do damage to the amount of one cent each. 

 Granting that cutworms are injurious to the amount 

 of one cent each and that they work four months in- 

 stead of three, still Kirkland's estimate is about four 

 times too large, for a toad can not fill its stomach more 

 than once in twenty-four hours. Furthermore, my experi- 

 ments show that it eats, on an average, only once in one 

 and a half days. These factors give the toad a value 

 of about $5 per year on the basis of Kirkland's estimate. 

 Such figures may be approximately correct for green- 

 houses, gardens or truck farms, but on the whole I am 

 inclined to think they are too large for farming districts. 



(To be concluded) 



