A HARD-WORKING DIET. 



367 



fishermen believe them to be. For what the British 

 workman determines to do, by CO-OPERATION he 

 can do. Truck loads might be had direct. 



As regards hard work, it must be remembered 

 before a man is able to do this he must keep himself 

 alive, and only one-fifth of the energy he obtains from 

 his food can be used for what is called " external 

 work." The work of mere living is hard work the 

 work involved in the beat of the heart and the action 

 of the lungs alone, which goes on during sleep as well 

 as by day, and the maintenance of heat. 



Here is a table by Professor Frankland, showing 

 alternative foods of a person even lying quite idle. 



WEIGHT OF VARIOUS ARTICLES OF FOOD REQUIRED TO SUSTAIN 

 RESPIRATION AND CIRCULATION IN THE BODY OF AN 

 AVERAGE MAN DURING TWENTY-FOUR HOURS. 



Only one-fifth 

 of energy 

 obtained from 

 food is avail- 

 able for ex- 

 ternal work. 



Requirements 

 for "internal 

 work." 



Then, besides the chemical aspects of the question, 

 there is that very practical one of relative cost 

 a subject to which Dr. Edward Smith paid much 

 attention, and on which he drew up suggestive Tables, 

 which he included in the Reports to the Privy 

 Council, made under such circumstances as mentioned 

 in the next few pages which seemed to fully justify 



Consideration 

 of relative 

 cost. 



