220 



PEARL— STAPLE COMMODITIES AND 



is evident. The statistical estimate of per capita protein consump- 

 tion over the whole population is distinctly higher than in this small 

 group. The fat consumption is higher but not by so large an 

 amount as protein. The farmers and professional men show a 

 higher net energy intake than the general average for the whole 

 country, which would, of course, be expected. Mechanics are a 

 little lower than the average for the country in energy intake. 



In any case there is one fact which must not be lost sight of, 

 namely, that while the figures of Table XV. do in fact represent 



TABLE XVI. 

 Summary of Some Dietary Studies in ii Groups and ii6 Families. 



No. of 

 Fami- 

 lies. 



Average 

 Yearly 

 Income. 



Days 



per 



Man. 



Per Man per Day. 



Pro ein, 

 Grams. 



Energy, 

 Calories. 



Mother wage earners . . . 



Garment makers 



Laborers 



Retired 



Clerks (office) 



Mechanics 



Teachers 



Professional men 



Engineers (professional) 



Salesmen 



Farmers 



32 



17 



5 



5 



$ 640 



724 



1.497 



1,647 



1.934 

 2,133 

 2,150 

 2,208 

 2,253 

 2,527 



212 

 168 

 305 

 130 

 225 



259 

 620 

 438 

 97 

 121 



384 



105 

 109 

 94 

 81 

 92 

 97 

 88 

 99 

 85 

 90 

 102 



2,89s 

 3.145 

 3.210 

 3,095 

 3,125 

 3,245 

 3.195 

 3.480 

 3.070 

 2,980 

 3,610 



Average 1 1.6 



$i,77i"| 260 



95 



113 i 447 



3-185 



,11 Average of 104 families (farmers excluded). 



ingestion and waste, it still is true, and the constancy of the figures 

 in successive years proves its truth, that to maintain naturally a 

 contented feeling in respect of nutrition the population actually uses 

 up the amounts of nutrients indicated in Table XV. To make these 

 gross consumption figures materially less would require a profound 

 readjustment of the dietary and culinary habits of the people, fixed 

 by centuries of usage. Discussion of the minimum protein, fat and 

 carbohydrate requirements of a nation are in considerable degree 

 academic if they base themselves upon net consumption rather than 

 gross consumption. A considerable excess over any agreed upon 

 minimum physiological requirements must always be allowed, be- 



