102 



SHINKISHI HATAI 



100 



250 



300 350 400 450 



Chart 3 Showing the weight of liver of the male albino rat according to body- 

 weight. The observed weights are represented by 136 male rats. 

 • Observed weight. ' Calculated weight. 



3. Liver. The growth of the liver in weight is represented by 

 the following formula: Weight of liver = 



0.0303 (Bd. wt. + 5) + 3.340 log (Bd. wt. + 5) - 3.896 

 [Bd. wt. > 10] 



The constants of the formula were determined from 136 male 

 rats and the relation between the observed and calculated values 

 is shown in chart 3. We notice here a much greater fluctuation 

 of the observed values than in the two previous cases. Since the 

 liver is the seat of food storage, as well as performing several other 

 important and complex functions, one might naturally expect 

 a high variability as the consequence of its varied physiological 

 activities. It is possible also that the weight of the liver may 



