94 



GROWTH OF PARTS AND ORGANS 



No sex difference was observed but the graph represents the 

 determinations for the male only. Hatai ('13); Jackson ('13). 



Weight of the liver on the body weight. Technic: The vessels 

 were cut close to their entrance into the liver and the blood 

 in the larger vessels gently pressed out. The graph given in 

 chart 13 and the values in table 69 were determined by 

 formula (16). 



20 

 19. 

 18. 



17. 



16. 

 15. 

 14. 

 13. 

 12. 



It. 

 10- 



9. 



8. 



7. 



20. 



10. 



15. 



50 



250 



300 



Chart 13 Showing the weight of liver of the male albino rat according to body 

 weight. The observed weights are represented by 136 male rats. Table 69, for- 

 mula (16) . 



• Observed weight. Calculated weight. 



No sex difference in the weight of the liver has been noted — 

 but the graph is given for the males only. Considerable vari- 

 ability is to be expected in the weight of an organ with such com- 

 plex functions as those of the liver and this appears. A heavy 

 liver usually accompanies a heavy spleen (Hatai). Hatai ('13); 

 Jackson ('13). 



