FOOD REQUIREMENTS lOl 



than a clerk who sits at a desk eight or nine hours ; an errand boy 

 who really runs five or six hours a day may expend more energy than 

 a stout man playing golf seven or eight hours. On the basis of hours 

 and kinds of work done, the following calculations ^ have been made ; 

 these are to serve merely as a basis for comparison, and not as 

 absolute standards. 



Character of Work Calories per Day 



According to Tigerstedt 



Lumberman Over 5000 



Excavator, miner 4100-5000 



Farm hand (in busy season) 3200-4100 



Carpenter 2700-3200 



Weaver 2400-2700 



Shoemaker 2000-2400 



According to Langworthy 



Man at very hard work 6000 



Farmers, mechanics, etc 3425 



Business men, students 3285 



Inmates of institutions (doing little or no work) . 2600 



Very poor persons (usually out of work) . . . . 2100 



1 More recently, experimental studies of this subject have been made on a 

 large scale, with the use of the respiration calorimeter, at the University of 

 Helsingfors in Finland. The results of these experiments, made by Becker 

 and Hamalainen, are given in the following table : 



Calories per Day 

 FOR Men 



Woodcutter, lumberman 5500-6000 



Stonecutter, excavator, miner 4700-5200 



Cabinetmaker, farm hand, painter 3500-3600 



Metal worker 3400-3500 



Shoemaker 3100 



Bookbinder 3000 



Tailor . . . 2600-2800 « 



Calories per Day 

 FOR Wome:t 



Washerwoman 2900-3700 



Housemaid 2500-3200 



Bookbinder 2100-2300 



Seamstress (on sewing machine) 2100-2300 



Seamstress (on hand work) - 2000 



