KUUKKT \V. HKCXER. 



I MtLE III. 



THE RATE OF GROWTH OF LARV^, PUP.*: AND ADULTS OF Calligrapha bigsbyana. 



'Larvae began to feed. 



'Three larva; died. 



'Moulting began on the fourth day; eight larvae died. 



Second moult in progress. 



6 One larva died. 



"Third moult in progress. 



7 ()ne larva died. 



Fee-ding practically stopped and larvce prepared for pupation. 



"One larva died. 



10 Onc larva died. 



Minot's results from weighings made of ^iiiiu-.i -p'.^ ^H<\v that 

 the growth rate increases almost immediately alter liirtli, the 

 decline being very rapid at first, but less rapid a-> the age of the 



