C N T 1: NTS. 



Page. 



Introduction 7 



The hTinber camp 8 



The bean hole and the method of cooking beans 9 



Sotir-dough biscuit ^ 1*^ 



The hinibering operations and the character and amount of work involved. 10 



Cutting and yarding, and landing the logs 10 



The daily routine H 



Driving the logs 11 



The dietary studies 13 



Composition of the food materials 14 



Tabulation of results 16 



Dietary study No. 390 16 



Dietary study No. 391 17 



Dietary study No. 392 31 



Dietary study No. 893 24 



Dietary study No. 394 . 



27 



Discussion of the dietaries 30 



The cost of the food 34 



Amount of food wasted 35 



Sources of protein and energy 35 



Digestion experiments with Maine lumbermen on a mixed diet 36 



Composition of food materials and feces 37 



Details of digestion experiments 38 



Digestion experiment No. 463 39 



Digestion experiment No. 464 41 



Digestion experiment No. 465 43 



Digestion experiment No. 466 45 



Dige.stion experiment No. 467 47 



Digestion experiment No. 468 - - 49 



Metabolic products in the feces . 51 



Summary of results of digestion experiments 52 



Sources of the nutrients 55 



Nuti-ients eaten per man per day in the digestion experiments 56 



Conclusions 59 



5 



