On The Necessity for Proper Foodstuffs. 317 
up the deficiency, in which ever direction it may be. As 
for example when we take starchy puddings made with 
eggs, milk and butter, fat bacon or sausages with poultry 
and as when the East Indian mixes the various peas 
and fats with his rice. But this last race never gets 
enough nitrogenous food hence his poorly developed 
muscular system. In British Guiana the deficiency of 
the plantain in nitrogenous matter should be and is 
for the most part made good by meat and wheaten 
flour. 
LANDOIS states that by careful analysis it has been 
found that, as a rule, an adult requires daily 130 grammes 
proteids (albumen), 84 grammes fat and 404 grammes of 
carbohydrates, but this quantity is liable to vary with the 
condition of the person. And Parke gives the follow- 
ing scale for diets. 
At Rest. 
Ordinary Work. Laborious Work. 
Proteids ... 2*5 .. 
4'6 ... ... 6 to 7 
Fats ... ... vo .. 
3*o 3*5 to 4'5 
Carbohydrate ... 12 
. i4'4 16 to 18 
Salts "5 - 
i*o 1*2 to 1*5 
Total Water free Solids 16 
23 26*7 to 31 ozs. 
So that under ordinary conditions the quantity of say 
23 ozs. of dry solid food is combined with from 25 
to 37 ozs. of water, so that really we daily take about 
from 48 to 60 ozs. of solid food. Or put in another form 
in which the weight of the various elements making up 
each class of food is shown we find that an adult during 
ordinary work uses — 
Carbon. Hydrogen. Nitrogen. Oxygen. 
120 grammes of albumen containing 64*18 8*60 18*88 28*43 
fats „ ... 70*22 10*26 9*54 
starch „ ... 146*82 20*33 162*85 
18*88 200-73 
? 64*18 
70*22 
. 146*82 
8*60 
10*26 
20*33 
281*20 
RR 
39*17 
