GROWTH OF THE SKELETON 



249 



just at birth the pelvic girdle plus appendages is relatively poorly- 

 developed, but it at once begins to grow more rapidly than the 

 shoulder-girdle and appendages, and after the first few days 

 forms the larger fraction of the entire body. The mature 



I! WEICHT IN CRAMS 



LilLLL I J-LU 



I I 1 I I I I I 1 M I I I I I I I 



Growth of Skeleton— Albino Rat 

 Fresh 



ll ll ll ll lll n i i i . T 



Fresh Pelvic Girdle- ! j \t 



Chart 4 Absolute fresh weight of shoulder-girdle plus fore limbs and pelvic 

 girdle plus hind limbs, on body weight (albino rat). Table 4. 

 • Shoulder-girdle plus limbs. A Pelvic girdle plus limbs. 



400 



450 



Chart 5 Relative fresh weight of shoulder-girdle plus limbs and of pelvic 

 girdle plus limbs, on body weight (albino rat). Table 4. 

 • Pelvic girdle plus limbs. A Shoulder-girdle plus limbs. 



relations between the two divisions are established at puberty 

 (body weight, 100 grams). 



This completes the presentation for the weight of the fresh 

 skeleton and its parts considered in relation to the weight of 

 the body. 



