This section is from the book "Mrs. Rorer's Diet For The Sick", by Sarah Tyson Rorer. Also available from Amazon: Mrs. Rorer's Diet For The Sick.
Purchase the best quality of cows' milk, in sealed bottles. If this is impossible, and you have to buy milk in bulk, pasteurize it as soon as you receive it.
Put the milk in the refrigerator or in a cold place as soon as it is received. Fifteen minutes' standing in a warm kitchen will frequently cause it to sour. Keep it covered or sealed until you are ready to modify it.
Modify enough each morning to last for twenty-four hours.
Keep modified milk in bottles if possible; if not, in a covered jar in the refrigerator.
Ask the physician to write down the quantity that the infant is to have at each feeding, and the number of feedings per day. Commit them to memory that you may make no mistake. Any deviation from this rule is detrimental to the infant.
Do not put the bottle in the baby's mouth every time he cries, for nine out of ten times he is not crying for food.
A correct diet will produce a firm, healthy baby, not a fat one. Fat babies usually fall ill on the slightest cause.
If the baby vomits after eating, it has either had too much food, or the food does not agree. Consult the physician. Such conditions should not be overlooked.
If the baby sleeps well and looks well, nine out of ten times the food agrees. If it fails to gain in weight, consult the physician, that he may change the food.
If undigested food is found, in the stools, the milk does not agree. Add ten drops of lime water to each feeding. Do not continue this beyond the requirements of this attack of indigestion. The use of lime water continued is unnatural and unhealthful.
The Gordon Walker table is arranged for the fifty-two weeks. After this comes the weaning time, regulated according to the health and vigor of the infant and mother. Many infants are nursed too long; the mother's milk has deteriorated, and the child does not thrive after weaning. Some argue that when the eight incisor teeth have been cut with ease, and this should be about the end of the twelfth or fourteenth month, the child should be weaned; the saliva now is flowing abundantly and the digestive organs are by Nature fitted for a little solid food.
Dr. Joseph E. Winters, Professor of the diseases of children, Cornell University Medical College, says:
"Late weaning, or the too prolonged use of milk as the exclusive diet of a child artificially fed, causes anaemia. This is the first pathological condition which we mark as arising from failure to modify the diet of a child at the proper time. The chemistry of milk, the physiological chemistry of the child, and the physiology of the digestive organs denote that such change should be made at a fairly definite time. From the seventh to the tenth month, according to the degree of development of the child and the advancement of dentition, the ferments which digest farinaceous substances are present in sufficient quantity to indicate that a change of food should be made."
"Oatmeal is rich in all the constituents which are essential for the growth and development of the child; they are rich in proteid, fat and mineral matter. Oatmeal, the richest in iron, is an excellent food to be added first; strained at first when you add it to the milk in the bottle; later, plain cooked, with milk, no sugar. It is seldom wise to begin the use of farinaceous foods with a child during the warm months, as they are prone to cause fermentation and diarrhoea if the child is teething. Milk and barley water will constitute the child's food during these months."
 
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