280 The Sugar-Beet in America 
analyzed, and it is thus shown that more blood traverses 
an active or working muscle and more sugar disappears 
from it than is the case with a muscle at rest. 
“To decide the question of the value of sugar as a 
source of energy for the working muscle, much careful 
laboratory work has been carried on. It has been found 
that an increase in the sugar content of the diet, when 
not too great and when the sugar is not too concentrated, 
lessens or delays fatigue and increases working power. 
Increased amounts of sugar were found to increase the 
ability to perform muscular work to such an extent that 
on a ration of 500 grams (17.5 ounces) of sugar alone a 
man was able to do 61 to 76 per cent more work than on a 
fasting diet, or almost as much as on a full ordinary diet. 
The addition of about half this quantity of sugar to an 
ordinary or to a meager diet also considerably increased 
the capacity for work, the effect of the sugar being felt 
about a half an hour after eating it, and its maximum 
effect showing itself about two hours after eating. The 
coming of fatigue was also found to be considerably de- 
layed on this diet, and taking 3 or 4 ounces of sugar a 
short time before the usual time for the occurrence of 
fatigue prevented the appearance of it. Lemonade, or 
other similar refreshing drink, and chocolate have been 
suggested as mediums for supplying in small doses an extra 
amount of sugar to men called upon to perform extraor- 
dinary muscular labor. The application of these re- 
sults to the food of soldiers: who may be called upon for 
extraordinary exertion in marching or fighting is very 
evident. Practical tests of the value of sugar in pre- 
venting or delaying fatigue, made in both the German and 
