THE PARS BUCCALFS OF THE HYPOPHYSIS 



51 



Fig. 2 Growth curves of hypophysectomized frog larvae supplied with a con- 

 tinuous diet of fresh anterior-lobe substance, anterior lobe once a week and anterior 

 lobe from May 6th to July 18th, then liver. The ordinates represent the total 

 length of the larvae expressed in millimeters. 



