WEIGHTS OF ORGANS IN UNDERFED YOUNG RATS 



133 



The spinal cord; average absolute iveight, average percentage of net body-weight and 



range indicated 



DE8CRIPTIO>f OF RATS 



ABSOLUTE WEIGHT 



(AND range): grams 



relative weight 

 (and range): 



PER CENT 



Normal at 3 weeks (Donaldson '08, table 1) 



Controls at 3 weeks 



Body-weight constant-3 weeks (age of 3 to weeks) 

 Body-weight constant 5 weeks (age of 3 to 8 weeks) 

 Body- weight constant 7 weeks (age of 3 to 10 weeks) 



Normal at 6 weeks (Donaldson '08) 



Controls at 6 weeks 



Body-weight constant 26 weeks (age of 6 to 32 weeks) 



Normal at 10 weeks (Donaldson '08) 



Controls at 10 weekst 



Body-weight constant 25 weeks (age of 10 to35 weeks) 

 Controls at 32 and 35 weeks 



(0.152- 

 (0.149- 

 (0.188- 

 (0.201- 



0.180 



0.179 



0.207 



0.192 



0.243 



0.254 



0.286 



0.399 (0.378-0.420) 



0.333 



0.422 (0.341- 



0.520 (0.500- 



0.603 (0.491- 



0.200) 

 0.235) 

 0.195) 

 0.314) 



0.464) 

 0.550) 

 0.667) 



0.72 



0.74 (0.56-0.89) 



0.96 (0.63-1.25) 



1.08 (1.06-1.09) 



1.02 (0.89-1.17) 



0.57 



0.67 



0.85 (0,83-0.86) 



0.44 



0.32 (0.27-0.39) 



0.67 (0.64-0.69) 



0.33 (0.24-0.44) 



* Gross body-weight. 



t Body-weight of controls at 10 weeks too high for comparison. 



TABLE 12 



The eyeballs; average absolute weight, average percentage of net body-weight and range 



indicated 



DESCRIPTipN OF RATS 



ABSOLUTE WEIGHT 

 (and RANGE): GRAMS 



relative weight 

 (and range) : 



PER CENT 



Normal at 3 weeks (Jackson '13) 



Controls at 3 weeks 



Body-weight constant 3 weeks (age of 3 to 6 weeks) 

 Body- weight constant 5 weeks (age of 3 to 8 weeks) 

 Body-weight constant 7 weeks (age of 3 to 10 weeks) 



Normal at 6 weeks (Jackson '13) 



Control at 6 weeks 



Body-weight constant 26 weeks (age of 6 to 32 weeks) 



Normal at 10 weeks (Jackson '13) 



Controls at 10 weeks* 



Body-weight constant 25 weeks (age of 10 to 35 weeks) 

 Controls at 32 and 35 weeks 



0.105 (0.073- 

 0.120 (0.110- 

 0.142 (0.138- 

 0.146 (0.145- 

 0.179 (0.130- 

 0.153 (0.125- 

 0.152 



0.240 (0.230- 

 0.173 



0.209 (0.195- 

 0.275 (0.249- 

 0.260 (0.235- 



0.125) 

 0.133) 

 0.149) 

 0.146) 

 ■0.196) 

 ■0.175) 



0.250) 



0.228) 

 0.323) 

 0.296) 



0.52 (0.31 

 0.50 (0.34 

 0.64 (0.60 

 0.82 (o.sr 

 0.76 (0.57^ 

 0.32 (0.18 

 0.36 



0.51 (0.50 

 0.23 



0.16 (0.13 

 0.35 (0.34 

 0.15 (0.12 



■0.73) 

 -0.69) 

 0.72) 

 ■0.82) 

 ■1.00) 

 -0.40) 



-0.52) 



■0.21) 

 ■0.38) 

 0.17) 



* Body-weight of controls at 10 weeks too high for comparison. 



