120 



THE VITAMINES 



^oo 



150 

 100 

 50 





cT 



Z 





Fic.^25. SHOWING FAILURE TO GROW ON A DIET DEFICIENT IN VITAMINE 

 B, AND RECOVERY ON ADDING THAT FACTOR (REP. MED. RES. COM.) 



Diet without vitamine B 



Complete diet 



140 



FIG. 26. INFLUENCE OF VITAMINE B ON THE FOOD-INTAKE (OSBORNE) 



