The question of "when" or "how often" the solid excreta should be voided or released is one that immediately presents itself when the subject is under discussion. The common opinion is that "once-a-day" periodicity is the proper and only healthy thing, and should a day pass there would be immediate fear of "constipation."
Under the best test conditions, before referred to, the ash accumulated in sufficient quantity to demand release only at the end of six, eight, or ten days, the longer periods of rest being the evidence of the best economic and health results.
Under ordinary conditions of carelessness and strenuous environment, say an exciting and exacting city occupation, twice a week is as often as one should accumulate a deposit of digestion-ash and feel sure that the strain on the system is not excessive and dangerous. Young people seem to thrive even when delivering daily a large quantity of smelly excreta; but it is an abuse of the "ten-horse reserve"[10] with which the human engine is supplied; and along in the "forties" or the "fifties" or the "sixties" the body shows signs of premature wear when it should be but in its prime.
[Footnote 10: Dr. Meltzer's estimate of human reserve strength and resistance which must be out-worn or over-strained before death calls a settlement.]
Another important matter should be mentioned in this exchange of sanitary confidences. When the ashes of digestion are dumped the body should assume the shape of the letter Z. It is the natural position of primitive man (squatting on his heels), and the body was originally constructed on that plan. If otherwise poised (sitting erect) the delivery of digestion-ash is performed with the same difficulty as would be experienced when trying to force a semi-solid through a bent or a kinked hose.
The publication of the observation of Dr.----, here following, is a breakaway from the prudery of a diseased and disgusting age,--a protest jointly shared by the scientific observer and the voluntary test-subject, whose only aim in the pursuit of the study to "a finish" is the ultimate benefit of the human race.
SCIENTIFIC OBSERVATION OF A LITERARY TEST-SUBJECT
"During his sojourn in Washington in July, 1903, I saw much of Mr.----, and in a very intimate way. The weather at that period was very hot, sometimes near 100°, and very sultry. For ten days or two weeks in the midst of this season he was busily engaged in constructive writing, turning out on an average some eight thousand words on his typewriter daily, which meant a close application for ten or fourteen hours each day. He usually began his work at from two to five o'clock in the morning, continuing often until three or four o'clock in the afternoon, when we would commonly go together to a ball game, which he enjoyed with the enthusiasm of a boy of twelve. Later in the evening he would resume his work for from one to three hours, retiring at from ten to about midnight. His food consisted of a glass of milk with a trace of coffee, and corn 'gems,' four of which he consumed in the twenty-four hours. Occasionally he would add in very hot weather a glass of lemonade. There was at no time any evidence of mental or physical fatigue. That such an amount of work, with the maintenance of perfect health, could be accomplished on such a small quantity of food can be accounted for only on the assumption of a complete assimilation of the ingested material. As the degree of combustion is indicated by the ashes left, so the completeness of digestion is to be measured by the amount and character of the intestinal excreta. A conclusive demonstration of thorough digestion in Mr. ----'s case was afforded me. There had, under the _régime_ above mentioned, been no evacuation of the bowels for eight days. At the end of this period he informed me that there were indications that the rectum was about to evacuate, though the material he was sure could not be of a large amount. Squatting upon the floor of the room, without any perceptible effort he passed into the hollow of his hand the contents of the rectum. This was done to demonstrate human normal cleanliness and inoffensiveness; neither stain nor odour remaining, either in the rectum or upon the hand.[11] The excreta were in the form of nearly round balls, varying in size from a small marble to a plum. These were greenish-brown in colour, of firm consistence, and covered over with a thin layer of mucus; _but there was no more odour to it than there is to a hot biscuit_.