BONE GROWTH. 63 



Since growth is a process it should be studied as such and 

 expressed in terms of rate. This point of view governs tin- 

 present inquiry. 



From Table I. it is seen that the femur is heavier and longer 

 than the humerus at all ages in both sexes. This is a consequence 

 of the fact that the rate of growth in weight and length (grams 



,77oy 23 30 



CHART i. The growth capacity in weight and length on age of the humerus, 

 femur and body of the male and female albino rats. 



