104 



CM. JACKSON AND C. A. STEWART 



Chart 4 represents the individual curves of body weight for 

 five albino rats from litter S33, refed after underfeeding begin- 

 ning at three weeks and extending up to twenty weeks (138 

 days) of age. The test rats included 2 males and 1 female, 



18 138 M8 trs 



20 ^0 60 60 too 120 M IbO 180 200 220 2W 260 280 300 i20 i^O 360 380 VJO 120 410 160 180 300 320 



with 1 male and 1 female full-fed control (table 1). 'L' indi- 

 cates the birth of a litter by the female control. While the 

 test rats grew rapidly for awhile after refeeding, the growth 

 soon ceased and their permanent depression in body weight, in 

 comparison with that of the controls, is obvious. 



