1913] N- R- Blatherwick and P. B. Hawk 37 



dry feces, The values varied from 20.91 percent to 40.35 percent. 

 The average percentage of bacterial nitrogen was 56.25, the low 

 value being 50.70 percent and the high value 64.34 percent, The 

 amount of bacterial dry substance excreted daily was 5.146 gm. 

 The above facts may be summarized as follows : 



Nutrition experimenters have obtained the following results for 

 the amounts of dry bacteria excreted daily : 



Strasburger (14) 8.0 grams 



Sato (15) 8.54 grams 



Berger and Tsuchiya (16) 3.023 grams 



MacNeal, Latzer and Kerr (17) 5.34 grams 



Mattill and Hawk (2, 11) 8.27 grams 



Blatherwick and Hawk 6.189 grams 



Values obtained for the percentage of dry bacteria in dry feces 

 are as follows: 



Strasburger (14) 24.3 percent 



Schittenhelm and Tollens ( 18) 42.0 percent 



Lissauer (19) 8.67 percent 



Harris (12) 9.18 percent 



Tobaya (20) 1 1.22 percent 



Sato (15) 24.39 percent 



Berger and Tsuchiya (16) 12.6 percent 



MacNeal, Latzer and Kerr (17) 26.9 percent 



Mattill and Hawk (2, 11) 27.95 percent 



Blatherwick and Hawk 29.94 percent 



It is interesting to note, here, that the values for bacterial dry 

 matter and for percent of dry bacteria in dry feces obtained from 

 subject C are almost identical with those reported by MacNeal, 

 Latzer and Kerr. Their values were 5.34 gm. and 26.9 percent 

 respectively, and ours 5.146 gm. and 26.51 percent. 



