From these and other considerations, we see that it is not only unnecessary, but inadvisable to diet ourselves according to any of the old standards, such as that of Voit, or even to any other standard, until they have been very thoroughly revised. We shall probably find that as the body becomes accustomed to simpler food, a smaller quantity of the food is necessary. The proportion of proteids to other constituents in all the ordinary, not over manfactured vegetable foods, such as are generally eaten, may be taken as sufficient. Several cookery books have been compiled in conformity with certain proteid standards and also with some more or less fanciful requirements; these give the quantities and kinds of food which it is imagined should be eaten each day. Theoretically, this should be calculated to accord with the weight, temperament, age and sex of the eater and the work he or she has to perform. The dietaries that we have seen have their proteid ratio placed unnecessarily high. This high proteid ratio can be got by the use of the pulses, but except in small quantities they are not generally admissible, and in some of the dietaries they are ruled out. The difficulty is got over by the liberal use of eggs, cheese and milk. To admit a necessity for these animal products is to show a weakness and want of confidence in the sufficiency of vegetable foods. Some of these cookery books are of use in sickness, especially as replacing those of the beef-tea, chicken-broth, jelly and arrowroot order. They provide a half-way stage between flesh and vegetable food, such as is palatable to those who have not quite overcome a yearning for flesh and stimulating foods. The liberal use of animal products is less likely to excite the prejudice of the ordinary medical practitioner or nurse. Possibly, also, a higher quantity of proteid may be required on first giving up flesh foods.