34 



EXPERIMENTAL PHYSIOLOGY 



Under " Result" tell exactly what happens. 



Under "Nutrient Present" write the name of the nutri- 

 ent that the test shows to be present. If no reaction fol- 

 lows from the test leave this space blank. 



Under " Relative Amount" write Little if the reaction is 

 weak, and Much if the reaction is strong. 



From your results, why are flour, meat, and milk consid- 

 ered especially valuable foods? 



XXI. STUDY OF FOOD CHARTS. 1 



1 More extensive tables may be found in a pamphlet printed by the Depart- 

 ment of Agriculture, Farmer's Bulletin No. 23, "Foods, Nutritive Value and 

 Cost," by W. O. Atwater. 



