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.^ 



^ 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. 



