52 



and cold limewater. The lesults obtained by these methods, and the 

 coefficients of digestibility of nitrogen (protein) in the different 

 experiments when corrections are applied according to the data thus 

 obtained, are given in the table which follows : 



Table 24. 



-Coefficients of digestibility of nitrogen (protein) of food ivhen ailoiv- 

 ance is made for nitrogen of metabolic products in feces. 



[Mixed diet.] 



SUMMARY OF RESULTS OF DIGESTION EXPERIMENTS. 



In the following table are summarized the coefficients of digesti- 

 bility of the nutrients and availability of the energy in the food eaten 

 in the digestion experiments with lumbermen who were on a mixed 

 diet. In the case of protein the values are given as determined and 

 as corrected for metabolic products in the feces. 



Table 25.— Summary of results, including corrected values for protein, of diges- 

 tion experiments witJi Maine lumbermen. 



[Mixed diet.] 



The digestion experiments with Maine lumbermen were undertaken 

 principally to secure data for estimating the proportions of the 



