322 



INFLUENCE OF HYPOPHYSIS-FEEDING ON SIZE 



are much larger and heavier than the worm-fed controls. The 

 hypophysis-fed animals were contin on a diet of anterior lobe and 

 increased at the same rate as th ""'pis-fed animals of Experi- 



FiG. 1. Experiment 1. Worm-fed control animals at an age of 88 weeks 

 No. 1, female (total length, 177.5 mm.; weight, 34.8 gm.); No. 2, female (total 

 length, 194.5 mm.; weight, 40.0 gm); No. 3, male (total length, 200.5 ni.; weight, 

 35.0 gm.). 



ment 1 ; they are shown in Fig. 7. All hypophysi ed animals exceed 

 the size of the largest known animal (235 mm.), e largest one being 

 25.1 per cent larger than the largest known a. aial. None of the 

 worm-fed control animals has reached as yet the size of the largest 

 known animal. 



