TABLE 2 



Average data for the parts, systems, and organs in the groups of albino rats fully 

 refed to permanent size (adult) after underfeeding for various periods. Per- 

 centage differences i-\- or —) between the data for test rats and for normal controls 

 of similar body weight are indicated in parentheses. See note on the fourth group 



No. of test rats. . . 



No. of controls . . . 



Age of test rats. . . 



Body weight, g. .. 



Body length, mm. . 



Tail length, mm... 



Head, g 



Fore limbs, g 



Hind limbs, g 



Trimk, g 



Integument, g. .. . 



Skeleton, lig., g 



Skeleton, cart., g. . 



Musculature, g . . . 



Visceral group, g. 



'Remainder,' g. . . . 



Brain, g 



Spinal cord, g. . . . 



Eyeballs, g 



Thyroid, g 



Thymus, g 



Hypophysis, m.,g. 



Hypophysis, f., g.. 



Pineal body, g 



Heart, g 



Lungs, g 



Liver, g 



Spleen, g 



Kidneys, g 



Stomach^intes- 

 tines with con- 

 tents, g 



St. -Int., empty, g. 



Suprarenals, m., g. 



Suprarenals, f., g.. 



Ovaries, g 



Testes, g 



Epididymides, g... 



2 males, 3 fem. 



4 males, 8 fern. 



445 da. (-1-18.0) 



180 (-0.3) 



187 (-4.5) 



159 (-8.0) 



16.7 (-6.2) 



11.7 (-1-4.5) 

 26.5 (-0.4) 



121 (+1.7) 

 30.3 (-5.6) 



20.1 (-2.4) 

 15.5 (-15.3) 



71.8 (-4.1) 



26.2 (+9.9) 

 25.2 (+11.0) 



UNDERFED FROM 



BIRTH TO 3 WEEKS 



AND BEFED 



1.577 



0.555 



0.319 



0.0297 



0.0409 



0.0077 



0.0112 



0.0018 



0.852 



3.19 



7.92 



0.637 



1.660 



13.83 



7.05 



0.0374 



0.0499 



0.0451 



1.805 



0.613 



-8.0) 



-6.7) 



-2.1) 



+23.2) 



-29.9) 



-7.2) 



-2.6) 



+20.0) 



+8.7) 



-11.9) 



+6.3) 



+11.8) 



+3.4) 



+15.1) 



+ 17.3) 



-17.6) 



+1.5) 



-35.5) 



+8.7) 



+22.8) 



UNDERFED FROM 



BIRTH TO 10 WEEKS 



AND BEFED 



1 male, 3 fem. 



7 males, 9 fem. 



453 da. (+16.1) 



200 (-2.0) 



190 (-5.5) 



164 (-6.5) 



18.5 (-1.6) 

 13.1 (+6.5) 

 29.8 (-1.9) 



127 (-5.2) 



33.7 (-7.4) 

 19.3 (-11.9) 



14.6 (-24.7) 



75.8 (-10.3) 

 26.0 (+3.6) 

 33.5 (+26.9) 



1.679 



0.605 



0.332 



0.0240 



0.0542 



0.0081 



0.0101 



0.0015 



0.841 



2.87 



8.27 



0.647 



1.623 



17.42 



8.42 



0.0370 



0.0563 



0.0306 



2.232 



0.745 



-4.2) 



-1.3) 



+1.2) 



-5.5) 



-12.2) 



-10.0) 



-18.5) 



+7.1) 



+1.2) 



-14.3) 



+3.4) 



+8.2) 



-7.4) 



+32.2) 

 +27.6) 



-n.i) 



+ 12.6) 

 -56.8) 

 +17.6) 

 +32.6) 



2 males, 1 fem. 

 5 males, 9 fem. 

 340 da. (-12.2) 

 192 (+1.1) 

 189 (-4.5) 

 163 (-5.9) 

 18.3 (-0) 

 11.9 (-1.7) 

 27.9 (-1.1) 

 128 (+1.6) 



36.8 (+9.8) 

 20.5 (-3.3) 

 17.3 (-7.0) 



83.9 (+5.8) 

 27.5 (+13.2) 

 16.2 (-33.3) 



UNDERFED FROM 3 



WEEKS TO 20 WEEKS 



AND REFED 



1.726 



0.587 



0.292 



0.0284 



0.1029 



0.0092 



0.0094 



0.0009 



0.934 



2.96 



9.22 



0.516 



2.060 



14.41 



7.09 



0.0479 



0.0396 



0.0482 



2.307 



0.637 



-0.6) 

 -2.3) 

 -10.7) 

 +13.1) 

 +85.7) 

 +8.2) 

 24.2) 

 40.0) 

 +14.9) 

 -15.2) 

 +19.9) 

 -12.6) 

 +22.5) 



+14.0) 

 +12.7) 

 +10.6) 

 -20.8) 

 -32.0) 

 +30 3) 

 +24.4) 



UNDERFED FROM 3 

 WEEKS TO NEARLT 

 1 YEAR AND REFED 



7 males, 8 fem. 

 4 m, 8 f.i 

 490 da.i 

 1291 



176 (-0.2) 

 147 (-4.0) 



14.6 (+6.6) 

 8.6 (+19.4) 



19.7 (-1.5) 

 79.2 (-11.1) 

 22.5 (-7.8) 

 16.1 (+5.2) 

 14.1 (-) 

 49.0. (-8.6) 

 20.l!(-3.8) 

 14.4 (-11.7) 



1.690 (+2.8) 

 0.514 (-0.9) 

 0.319T(+18.0) 

 0.0153 (-13.2) 

 0.0439 (-7.8) 

 0.005S (-15.3) 

 0.006S (-5.7) 

 0.0012 (— ) 

 0.646 (+7.5) 

 4.94 (+31.4) 

 5.09 (+8.5) 

 0.387 (-7.0) 

 1.186 (-0.9) 



10.48 (— ) 



4] (-3.3) 

 0.0362 (+4.5) 

 0.0400 (+17.8) 

 0.0355 (-61.5) 

 667 (+17.1) 

 0.512 (+34.0) 



* In the fourth group, comparisons between test rats and controls for the 

 organs were made through the Wistar norms by Donaldson's method. For the 

 body parts and systems, the normal was calculated from the data of Jackson 

 and Lowrey, as explained in the text. 



116 



