For a period of six months, a daily dietary was prescribed for the subjects; the food for each meal and for every man being of known composition, each article being carefully weighed, while the content of nitrogen in the day's ration was so graded as to bring about a gradual reduction in the amount of proteid ingested. The rate of proteid katabolism was likewise determined each day by careful estimation of the excreted nitrogen, balance experiments being made from time to time in order to ascertain if the men were in a condition of nitrogen equilibrium. Finally, it should be mentioned that the subjects lived a fairly active life, having each day a certain amount of prescribed exercise in the university gymnasium, in addition to the regular drill and other duties associated with their usual work.

As just stated, the amount of proteid food was gradually reduced, three weeks being taken to bring the amount down to a level some what commensurate with the estimated needs of the body. This naturally resulted in diminishing largely the intake of meat, thoneh by no means entirely excluding it. Effort was constantly made to introduce as much variety as was possible with simple foods, though the main Problem with this group of men was keep the volume of the food up to such a point as would dispel any notion that they were nut having enough to eat. A second problem, which at first threatened trouble, was the fear of the men, as they saw the proportion of meat gradually drop off, that they were destined to lose their strength; but fortunately, they very soon began to realize that their fears in this direction were groundless, and a little later their personal experience opened their eyes to possible advantages which quickly drove away all further thought of danger, and made them quite content to continue the experiment. We may introduce here a few samples of the daily food given to the men after they had reached their lower level of proteid intake;

Photograph of the soldiers taken at the close of the experiment.

Photograph of the soldiers taken at the close of the experiment.

January 15. Breakfast

Wheat griddle cukes 200 grams, syrup 60 grama, one cup coffee 360 grams.

Dinner

Cwldili balls (4 parts potato, 1 part flah, fried in pork fat) 150 grams, slewed tomato 200 grams, bread 76 grama, one Cup coffee 350 gram*, apple pie 95 grama. Sapper.--Apple fritters 200 grams, stewed prunes 126 grams, bread 60 grunt, butter 15 grams, one cup ten 350 grama.

Total nitrogen content of the day's food c 8.660 grama.

January 16. Breakfast

Soft oatmeal 160 grama, milk 100 grama, sugar 30 gram*, bread 80 grams, butter 10 grama one cup coffee 360 grams.

Dinner

Baked macaroni with a little cheese 200 grams, stewed tomato 200 grams, bread 50 grams, tapioca-peach pudding 150 grams, one cap coffee 360 grams.

Supper

Fried bacon 20 grams, French fried potato 100 grams, bread 76 grama, jam 75 grams, one cup tea 360 grama.

Total nitrogen content of the day's food = 7282 grams.

1 The coffee was prepared with milk and sugar.

March 1. Breakfast

Fried rice 160 grams, syrup 60 grams, baked potato 160 grams, batter 10 grams, one cup coffee 360 grams.

Dinner

Thick pea soup 260 grams, boiled onions 160 grams, boiled sweet potato 160 grams, bread 76 grams, batter 20 grams, one cup coffee 860 grams. Sapper. - Celery-lettuce-apple salad 120 grams, crackers 82 grams, American cheese 20 grams, potato chips 79 grams, one cap tea 860 grams, rice costard 100 grams.

Total nitrogen content of the day's food = 7.826 grama.

March 3. Breakfast

Boiled hominy 176 grams, milk 126 grams, sugar 26 grams, baked potato 150 grams, butter 10 grams, one cup coffee 860 grams.

Dinner

Hamburg steak with much bread, fat, and onions 160 grams, boiled potato 260 grams, bread 76 grams, butter 10 grams, one cup coffee 350 grams.

Supper

Tapioca-peach pudding 260 grams, bread 76 grams, butter 20 grams, jam 76 grams, one cup tea 860 grams.

Total nitrogen content of the day's food = 8.760 grams,

March 6. Breakfast

Sliced banana 100 grams, fried Indian meal 160 grams, syrup 60 grams, baked potato 160 grams, butter 10 grams, one cup coffee 860 grams.

Dinner

Corned beef 60 grams, boiled cabbage 200 grams, mashed potato 260 grams, bread 76 grams, fried rice 100 grams, jam 76 grams, one cup coffee 860 grams.

Supper

Crackers 32 grams, butter 10 grams, sardine 14 grams, sponge cake

160 grams, apple sauce 160 grams, one cup tea 850 grams.

Total nitrogen content of the day's food = 10.266 grams.

March 2o. Breakfast

Sliced banana 260 grams, fried hominy 160 grams, butter 10 grams, syrup 75 grams, one cup coffee 350 grams.

Dinner

Codfish balls 125 grams, mashed potato 250 grams, stewed tomato 200 grams, bread 35 grams, apple sauce 200 grams, one cup coffee 350 grams.

Supper

Chopped fresh cabbage with salt, pepper, and vinegar 75 grams, bread 50 grams, butter 20 grams, fried sweet potato 250 grams, cranberry sauce 200 grams, sponge cake 50 grams, one cup tea 350 grams.

Total nitrogen content of the day's food = 9.860 grams.