152 'Journal of Comparative Neurology and Psychology. 



were considerably reduced with respect to the body weight.^ 

 This pecuHar difference, as is seen from the table, holds true in 

 every case. Further, the ratio between the length of the body and 



TABLE I. 



I-! 2: 



_- H 





M. 

 M. 

 M 



days. 



215 

 80-100 



182 



182 



80-100 



M 164 



M ! 164 



M 80-100 



F 164 



F 164 



F 80-100 



127 

 127 

 F 180-100 



grama. 



186.2 



106.2 



105.7 



186.7 

 113-7 

 99-7 



119. 1 



77.6 

 87.4 



126.9 



89.3 

 61 .7 



113. 2 

 70.9 



77.2 



15s 

 155 



190 



^57 



167 

 137 

 154 



170 

 140 

 128 



160 

 132 

 139 



mm. 

 158 

 112 

 131 



154 

 109 



130 

 100 

 119 



139 

 "3 

 "3 



135 

 105 



"5 



6325 

 6313 



6578 

 5678 

 7029 



6671 



5884 

 7156 



6859 

 6053 



7698 



7394 

 5110 



5597,78 

 4030 78 

 404978 



4862 78 

 375678 

 4059 78 



4524 78 

 357378 

 357978 



.4941 78 

 .373078 

 .297578 



■4459178 

 .340478 



•3359,79 



365' 70-573 

 623 72.641 

 900! 72.925 



I St control 

 stunted 

 2d control 



447 70.547 1st control 



772, 73.003 stunted 



971; 73.121 2d control 



315 71-353 1st control 



374 71 .760 stunted 



870 72.981 2d control 



118! 71 .623 1st control 



477 j 72.193 stunted 

 568, *7 1 .092 2d control 



72.303 1st control 

 73.413 stunted 

 73. 861 1 2d control 



Averages. 



F+ M 

 F+ M 



F+ M 



170 



170 



80-100 



146.4 



91-5 

 86.3 



175 

 144 



147 



143 I : 0.823I1 .7360 1 .772 .4877178.384 71 .28o| 1st control 

 108 I : 0.750! 1 .6267,1 .646 ! .3699 78.616J 72.602 stunted 

 120 ji : o.8i6|i .6098 1 .629 .360478.889: 72.796 2d control 



* This is the only exceptional case, where percentage of water in the second control is less than that 

 of the stunted. 



that of the tail is considerably less in the stunted rats than in the 

 control rats. The ratio just mentioned is found to be on the 

 average i :o.82 in both "first" and "second controls" while 



1 The measurement taken from the tip of the nose to the anus is designated as "body length" while 

 that from the anus to the tip of the tail is designated "tail length.'' 



