THE PARS BUCCALIS OF THE HYPOPHYSIS 



57 



ecr 



58 

 56 



S2-\ 



SO 



48' 

 46" 



44 

 42 



40 



38 



36 



34 



32 



30 



28 



26 



24 



22 



20 



18 ' 



16 



14 



IZ 



10 



FROG 

 TADPOLES 



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I I i i i i 



Fig. 4 Growth curves of hypophysectomized frog larvae supplied with fresh 

 anterior-lobe substance, with alcoholic extract and with alcoholic residue of the 

 anterior lobe. The ordinates represent the total length of the larvae expressed in 

 millimeters. 



