DIET IN THE YALE EXAMINATION OF THE AUTHOR
In the first place the selection of food for this test is no basis of general choice. The analysis of food for its elemental molecule values, and for its heat content, is a very difficult thing to do and takes much time; hence to bring a large variety into a diet during a test would entail enormous labour on the laboratory staff. Knowing this difficulty, when I was requested to choose something which would entirely satisfy my sense of taste gratification so as to best stimulate the flow of the digestive juices, I chose a cereal with a known content value. That is to say, I fed from different brands of cereals, the content value of which was known. A quart of fresh milk a day furnished the moisture required, and was not every day entirely consumed. Maple sugar was the most variable ingredient of the diet in regard to quantity. Of the milk I took nearly or quite one quart each day, of the cereal I averaged about 150 grams, or say 5 ounces, and the demand for the sugar varied from 150 grams to 200 grams, or say 5-7 ounces.
This food was taken in at two meals daily,—12-1 and 6-7 P.M.,—and the time required in taking was 12-14 minutes to the meal, including any delay necessitated in taking notes and in weighing the food. These delays were inconsiderable, however, as facilities for weighing and taking notes were perfected and their use well accustomed by the subject. The 26-28 minutes per day, then, may be set down as the careful but industrious eating time required to satisfy the waste and appetite of a man doing 'Varsity Crew work, as reported by Dr. Anderson and Professor Chittenden.
The activity outside the prescribed gymnasium exercises and any supplementary work consisted of awaking very early in the morning and doing considerable writing upon my typewriter. The agitation of this nutrition investigation has involved an immense amount of correspondence to keep the interest stimulated, and for the exchange of information between the interested parties; hence in addition to serving as test-subject, there was always much else to do to keep from getting hopelessly behind in the work.
The writing began anywhere from four to six in the morning in winter, which was the season of the test, and continued until about seven or eight, when the exercises were commenced and continued until finished. Meantime the mail of the morning had come in and frequently demanded immediate attention, which used up the time until between twelve and one o'clock, when a first-class appetite had been earned (no craving of hunger or "all-goneness" in the common form due to the persistence of habit hunger), and this insured a keen appreciation of taste and fulfilled all the requirements of a healthy digestion. The afternoon was always busy, sometimes with a lengthy walk around town, or a game of billiards when the weather discouraged outside work. The evenings were strenuous or restful, and were usually employed with conversation, reading, or a lecture.
Fortunately the simple food selected continued to be agreeable to the end, and cost an average of only eleven cents per day. When it was given up to accommodate the service furnished by social meals it was missed, the habit of supply having become somewhat fixed and expected by appetite.
In London, in search of the lowest possible economy, the author has subsisted on about half the cost of the Yale supply; and it is entirely possible to those needing strictest economy.