Benefits of Grains-Whole grains provide fiber, vitamins, minerals and other nutrients. Whole-grain foods help control of cholesterol levels, weight and blood pressure. These foods also help lower the risk of diabetes, heart disease and other conditions.
ABC OF SOUP MAKING BENEFITS OF GRAINS
Lean, juicy beef, mutton, and veal, form the basis of all good soups; therefore it is advisable to procure those pieces which afford the richest succulence, and such as are fresh-killed. Stale meat renders them bad, and fat is not so well adapted for making them. The principal art in composing good rich soup, is so to proportion the several ingredients that the flavour of one shall not predominate over another, and that all the articles of which it is composed, shall form an agreeable whole. To accomplish this, care must be taken that the roots and herbs are perfectly well cleaned, and that the water is proportioned to the quantity of meat and other ingredients. Generally a quart of water may be allowed to a pound of meat for soups, and half the quantity for gravies. In making soups or gravies, gentle stewing or simmering is incomparably the best. It may be remarked, however, that a really good soup can never be made but in a well-closed vessel, although, perhaps, greater wholesomeness is obtained by an occasional exposure to the air. Soups will, in general, take from three to six hours doing, and are much better prepared the day before they are wanted. When the soup is cold, the fat may be much more easily and completely removed; and when it is poured off, care must be taken not to disturb the settlings at the bottom of the vessel, which are so fine that they will escape through a sieve. A tamis is the best strainer, and if the soup is strained while it is hot, let the tamis or cloth be previously soaked in cold water. Clear soups must be perfectly transparent, and thickened soups about the consistence of cream. To thicken and give body to soups and gravies, potato-mucilage, arrow-root, bread-raspings, isinglass, flour and butter, barley, rice, or oatmeal, in a little water rubbed well together, are used. A piece of boiled beef pounded to a pulp, with a bit of butter and flour, and rubbed through a sieve, and gradually incorporated with the soup, will be found an excellent addition. When the soup appears to be too thin or too weak , the cover of the boiler should be taken off, and the contents allowed to boil till some of the watery parts have evaporated; or some of the thickening materials, above mentioned, should be added. When soups and gravies are kept from day to day in hot weather, they should be warmed up every day, and put into fresh scalded pans or tureens, and placed in a cool cellar. In temperate weather, every other day may be sufficient.
Various herbs and vegetables are required for the purpose of making soups and gravies. Of these the principal are, Scotch barley, pearl barley, wheat flour, oatmeal, bread-raspings, pease, beans, rice, vermicelli, macaroni, isinglass, potato-mucilage, mushroom or mushroom ketchup, champignons, parsnips, carrots, beetroot, turnips, garlic, shalots and onions. Sliced onions, fried with butter and flour till they are browned, and then rubbed through a sieve, are excellent to heighten the colour and flavour of brown soups and sauces, and form the basis of many of the fine relishes furnished by the cook. The older and drier the onion, the stronger will be its flavour. Leeks, cucumber, or burnet vinegar; celery or celery-seed pounded. The latter, though equally strong, does not impart the delicate sweetness of the fresh vegetable; and when used as a substitute, its flavour should be corrected by the addition of a bit of sugar. Cress-seed, parsley, common thyme, lemon thyme, orange thyme, knotted marjoram, sage, mint, winter savoury, and basil. As fresh green basil is seldom to be procured, and its fine flavour is soon lost, the best way of preserving the extract is by pouring wine on the fresh leaves.
For the seasoning of soups, bay-leaves, tomato, tarragon, chervil, burnet, allspice, cinnamon, ginger, nutmeg, clove, mace, black and white pepper, essence of anchovy, lemon-peel, and juice, and Seville orange-juice, are all taken. The latter imparts a finer flavour than the lemon, and the acid is much milder. These materials, with wine, mushroom ketchup, Harvey’s sauce, tomato sauce, combined in various proportions, are, with other ingredients, manipulated into an almost endless variety of excellent soups and gravies. Soups, which are intended to constitute the principal part of a meal, certainly ought not to be flavoured like sauces, which are only designed to give a relish to some particular dish.
BARLEY, BENEFITS OF GRAINS THE NUTRITIOUS
Barley is stated by historians to be the oldest of all cultivated grains. It seems to have been the principal bread plant among the ancient Hebrews, Greeks, and Romans. The Jews especially held the grain in high esteem, and sacred history usually uses it interchangeably with wheat, when speaking of the fruits of the Earth.
Among the early Greeks and Romans, barley was almost the only food of the common people and the soldiers. The flour was made into gruel, after the following recipe: “Dry, near the fire or in the oven, twenty pounds of barley flour, then parch it. Add three pounds of linseed meal, half a pound of coriander seeds, two ounces of salt, and the water necessary.” If an especially delectable dish was desired, a little millet was also added to give the paste more “cohesion and delicacy.” Barley was also used whole as a food, in which case it was first parched, which is still the manner of preparing it in some parts of Palestine and many districts of India, also in the Canary Islands, where it is known as gofio .
In the time of Charles I, barley meal took the place of wheat almost entirely as the food of the common people in England. In some parts of Europe, India, and other Eastern countries, it is still largely consumed as the ordinary farinaceous food of the peasantry and soldiers. The early settlers of New England also largely used it for bread making.
Barley is less nutritious than wheat, and to many people is less agreeable in flavor. It is likewise somewhat inferior in point of digestibility. Its starch cells being less soluble, they offer more resistance to the gastric juice.
There are several distinct species of barley, but that most commonly cultivated is designated as two-rowed, or two-eared barley. In general structure, the barley grain resembles wheat and oats.
Simply deprived of its outer husk, the grain is termed Scotch milled or pot barley . Subjected still further to the process by which the fibrous outer coat of the grain is removed, it constitutes what is known as pearl barley . Pearl barley ground into flour is known as patent barley . Barley flour, owing to the fact that it contains so small a proportion of gluten, needs to be mixed with wheaten flour for bread-making purposes. When added in small quantity to whole-wheat bread, it has a tendency to keep the loaf moist, and is thought by some to improve the flavor.
The most general use made of this cereal as a food, is in the form of pearl, or Scotch, barley. When well boiled, barley requires about two hours for digestion.
CEREALS AND THEIR PREPARATION BENEFITS OF GRAINS
Cereal is the name given to those seeds used as food (wheat, rye, oats, barley, corn, rice, etc.), which are produced by plants belonging to the vast order known as the grass family. They are used for food both in the unground state and in various forms of mill products.
The grains are pre-eminently nutritious, and when well prepared, easily digested foods. In composition they are all similar, but variations in their constituent elements and the relative amounts of these various elements, give them different degrees of alimentary value. They each contain one or more of the nitrogenous elements, gluten, albumen, caseine, and fibrin, together with starch, dextrine, sugar, and fatty matter, and also mineral elements and woody matter, or cellulose. The combined nutritive value of the grain foods is nearly three times that of beef, mutton, or poultry. As regards the proportion of the food elements necessary to meet the various requirements of the system, grains approach more nearly the proper standard than most other foods; indeed, wheat contains exactly the correct proportion of the food elements.
Being thus in themselves so nearly perfect foods, and when properly prepared, exceedingly palatable and easy of digestion, it is a matter of surprise that they are not more generally used; yet scarcely one family in fifty makes any use of the grains, save in the form of flour, or an occasional dish of rice or oatmeal. This use of grains is far too meager to adequately represent their value as an article of diet. Variety in the use of grains is as necessary as in the use of other food material, and the numerous grain preparations now to be found in market render it quite possible to make this class of foods a staple article of diet, if so desired, without their becoming at all monotonous.
In olden times the grains were largely depended upon as a staple food, and it is a fact well authenticated by history that the highest condition of man has always been associated with wheat-consuming nations. The ancient Spartans, whose powers of endurance are proverbial, were fed on a grain diet, and the Roman soldiers who under Caesar conquered the world, carried each a bag of parched grain in his pocket as his daily ration.
Other nationalities at the present time make extensive use of the various grains. Rice used in connection with some of the leguminous seeds, forms the staple article of diet for a large proportion of the human race. Rice, unlike the other grain foods, is deficient in the nitrogenous elements, and for this reason its use needs to be supplemented by other articles containing an excess of the nitrogenous material. It is for this reason, doubtless, that the Chinese eat peas and beans in connection with rice.
We frequently meet people who say they cannot use the grains, that they do not agree with them. With all deference to the opinion of such people, it may be stated that the difficulty often lies in the fact that the grain was either not properly cooked, not properly eaten, or not properly accompanied. A grain, simply because it is a grain, is by no means warranted to faithfully fulfil its mission unless properly treated. Like many another good thing excellent in itself, if found in bad company, it is prone to create mischief, and in many cases the root of the whole difficulty may be found in the excessive amount of sugar used with the grain.
Sugar is not needed with grains to increase their alimentary value. The starch which constitutes a large proportion of their food elements must itself be converted into sugar by the digestive processes before assimilation, hence the addition of cane sugar only increases the burden of the digestive organs, for the pleasure of the palate. The Asiatics, who subsist largely upon rice, use no sugar upon it, and why should it be considered requisite for the enjoyment of wheat, rye, oatmeal, barley, and other grains, any more than it is for our enjoyment of bread or other articles made from these same grains? Undoubtedly the use of grains would become more universal if they were served with less or no sugar. The continued use of sugar upon grains has a tendency to cloy the appetite, just as the constant use of cake or sweetened bread in the place of ordinary bread would do. Plenty of nice, sweet cream or fruit juice, is a sufficient dressing, and there are few persons who after a short trial would not come to enjoy the grains without sugar, and would then as soon think of dispensing with a meal altogether as to dispense with the grains.
Even when served without sugar, the grains may not prove altogether healthful unless they are properly eaten. Because they are made soft by the process of cooking and on this account do not require masticating to break them up, the first process of digestion or insalivation is usually overlooked. But it must be remembered that grains are largely composed of starch, and that starch must be mixed with the saliva, or it will remain undigested in the stomach, since the gastric juice only digests the nitrogenous elements. For this reason it is desirable to eat the grains in connection with some hard food. Whole-wheat wafers, nicely toasted to make them crisp and tender, toasted rolls, and unfermented zwieback, are excellent for this purpose. Break two or three wafers into rather small pieces over each individual dish before pouring on the cream. In this way, a morsel of the hard food may be taken with each spoonful of the grains. The combination of foods thus secured, is most pleasing. This is a specially advantageous method of serving grains for children, who are so liable to swallow their food without proper mastication.
CIRCUMSTANCES IMPACTING THE QUALITY OF MEAT
During the period between the birth and maturity of animals, their flesh undergoes very considerable changes. For instance, when the animal is young, the fluids which the tissues of the muscles contain, possess a large proportion of what is called albumen . This albumen, which is also the chief component of the white of eggs, possesses the peculiarity of coagulating or hardening at a certain temperature, like the white of a boiled egg, into a soft, white fluid, no longer soluble, or capable of being dissolved in water. As animals grow older, this peculiar animal matter gradually decreases, in proportion to the other constituents of the juice of the flesh. Thus, the reason why veal, lamb are white, and without gravy when cooked, is, that the large quantity of albumen they contain hardens, or becomes coagulated. On the other hand, the reason why beef and mutton are brown, and have gravy , is, that the proportion of albumen they contain, is small, in comparison with their greater quantity of fluid which is soluble, and not coagulable.
The quality of the flesh of an animal is considerably influenced by the nature of the food on which it has been fed ; for the food supplies the material which produces the flesh. If the food be not suitable and good, the meat cannot be good either. To the experienced in this matter, it is well known that the flesh of animals fed on farinaceous produce, such as corn, pulse, &c., is firm, well-flavoured, and also economical in the cooking; that the flesh of those fed on succulent and pulpy substances, such as roots, possesses these qualities in a somewhat less degree; whilst the flesh of those whose food contains fixed oil, as linseed, is greasy, high coloured, and gross in the fat, and if the food has been used in large quantities, possessed of a rank flavour.
It is indispensable to the good quality of meat, that the animal should be perfectly healthy at the time of its slaughter. However slight the disease in an animal may be, inferiority in the quality of its flesh, as food, is certain to be produced. In most cases, indeed, as the flesh of diseased animals has a tendency to very rapid putrefaction, it becomes not only unwholesome, but absolutely poisonous, on account of the absorption of the virus of the unsound meat into the systems of those who partake of it. The external indications of good and bad meat will be described under its own particular head, but we may here premise that the layer of all wholesome meat, when freshly killed, adheres firmly to the bone.
Another circumstance greatly affecting the quality of meat, is the animal’s treatment before it is slaughtered . This influences its value and wholesomeness in no inconsiderable degree. It will be easy to understand this, when we reflect on those leading principles by which the life of an animal is supported and maintained. These are, the digestion of its food, and the assimilation of that food into its substance. Nature, in effecting this process, first reduces the food in the stomach to a state of pulp, under the name of chyme, which passes into the intestines, and is there divided into two principles, each distinct from the other. One, a milk-white fluid, the nutritive portion, is absorbed by innumerable vessels which open upon the mucous membrane, or inner coat of the intestines. These vessels, or absorbents, discharge the fluid into a common duct, or road, along which it is conveyed to the large veins in the neighbourhood of the heart. Here it is mixed with the venous blood (which is black and impure) returning from every part of the body, and then it supplies the waste which is occasioned in the circulating stream by the arterial (or pure) blood having furnished matter for the substance of the animal. The blood of the animal having completed its course through all parts, and having had its waste recruited by the digested food, is now received into the heart, and by the action of that organ it is urged through the lungs, there to receive its purification from the air which the animal inhales. Again returning to the heart, it is forced through the arteries, and thence distributed, by innumerable ramifications, called capillaries, bestowing to every part of the animal, life and nutriment. The other principle the innutritive portion passes from the intestines, and is thus got rid of. It will now be readily understood how flesh is affected for bad, if an animal is slaughtered when the circulation of its blood has been increased by over-driving, ill-usage, or other causes of excitement, to such a degree of rapidity as to be too great for the capillaries to perform their functions, and causing the blood to be congealed in its minuter vessels. Where this has been the case, the meat will be dark-coloured, and become rapidly putrid; so that self-interest and humanity alike dictate kind and gentle treatment of all animals destined to serve as food for man.
COOKING OF GRAINS
All grains, with the exception of rice, and the various grain meals, require prolonged cooking with gentle and continuous heat, in order to so disintegrate their tissues and change their starch into dextrine as to render them easy of digestion. Even the so-called “steam-cooked” grains, advertised to be ready for use in five or ten minutes, require a much longer cooking to properly fit them for digestion. These so-called quickly prepared grains are simply steamed before grinding, which has the effect to destroy any low organisms contained in the grain. They are then crushed and shredded. Bicarbonate of soda and lime is added to help dissolve the albuminoids, and sometimes diastase to aid the conversion of the starch into sugar; but there is nothing in this preparatory process that so alters the chemical nature of the grain as to make it possible to cook it ready for easy digestion in five or ten minutes. An insufficiently cooked grain, although it may be palatable, is not in a condition to be readily acted upon by the digestive fluids, and is in consequence left undigested to act as a mechanical irritant.
Water is the liquid usually employed for cooking grains, but many of them are richer and finer flavored when milk is mixed with the water, one part to two of water. Especially is this true of rice, hominy, and farina. When water is used, soft water is preferable to hard. No salt is necessary, but if used at all, it is generally added to the water before stirring in the grain or meal.
The quantity of liquid required varies with the different grains, the manner in which they are milled, the method by which they are cooked, and the consistency desired for the cooked grain, more liquid being required for a porridge than for a mush.
All grains should be carefully looked over before being put to cook.
In the cooking of grains, the following points should be observed:
- Measure both liquid and grain accurately with the same utensil, or with two of equal size.
- Have the water boiling when the grain is introduced, but do not allow it to boil for a long time previous, until it is considerably evaporated, as that will change the proportion of water and grain sufficiently to alter the consistency of the mush when cooked. Introduce the grain slowly, so as not to stop the sinking to the bottom, and the whole becomes thickened.
- Stir the grain continuously until it has set, but not at all afterward. Grains are much more appetizing if, while properly softened, they can still be made to retain their original form. Stirring renders the preparation pasty, and destroys its appearance.
In the preparation of all mushes with meal or flour, it is a good plan to make the material into a batter with a portion of the liquid retained from the quantity given, before introducing it into the boiling water. This prevents the tendency to cook in lumps, so frequent when dry meal is scattered into boiling liquid. Care must be taken, however, to add the moistened portion very slowly, stirring vigorously meantime, so that the boiling will not be checked. Use warm water for moistening. The other directions given for the whole or broken grains are applicable to the ground products.
Place the grain, when sufficiently cooked, in the refrigerator or in some place where it will cool quickly (as slow cooling might cause fermentation), to remain overnight.
DIFFERENT WAYS TO COOK RICE
Rice needs to be thoroughly washed. A good way to do this is to put it into a colander, in a deep pan of water. Rub the rice well with the hands, lifting the colander in and out the water, and changing the water until it is clear; then drain. In this way the grit is deposited in the water, and the rice left thoroughly clean.
The best method of cooking rice is by steaming it. If boiled in much water, it loses a portion of its already small percentage of nitrogenous elements. It requires much less time for cooking than any of the other grains. Like all the dried grains and seeds, rice swells in cooking to several times its original bulk. When cooked, each grain of rice should be separate and distinct, yet perfectly tender.
Steamed rice benefits of grains
Soak a cup of rice in one and a fourth cups of water for an hour, then add a cup of milk, turn into a dish suitable for serving it from at table, and place in a steam-cooker or a covered steamer over a kettle of boiling water, and steam for an hour. It should be stirred with a fork occasionally, for the first ten or fifteen minutes.
Boiled rice (japanese method) benefits of grains
Thoroughly cleanse the rice by washing in several waters, and soak it overnight. In the morning, drain it, and put to cook in an equal quantity of boiling water, that is, a pint of water for a pint of rice. For cooking, a stewpan with tightly fitting cover should be used. Heat the water to boiling, then add the rice, and after stirring, put on the cover, which is not again to be removed during the boiling. At first, as the water boils, steam will puff out freely from under the cover, but when the water has nearly evaporated, which will be in eight to ten minutes, according to the age and quality of the rice, only a faint suggestion of steam will be observed, and the stewpan must then be removed from over the fire to some place on the range, where it will not burn, to swell and dry for fifteen or twenty minutes.
Rice to be boiled in the ordinary manner requires two quarts of boiling water to one cupful of rice. It should be boiled rapidly until tender, then drained at once, and set in a moderate oven to become dry. Picking and lifting lightly occasionally with a fork will make it more flaky and dry. Care must be taken, however, not to mash the rice grains.
Rice with fig sauce
Steam a cupful of best rice as directed above, and when done, serve with a fig sauce. Dish a spoonful of the fig sauce with each saucer of rice, and serve with plenty of cream. Rice served in this way requires no sugar for dressing, and is a most wholesome breakfast dish.
Orange rice
Wash and steam the rice. Prepare some oranges by separating into sections and cutting each section in halves, removing the seeds and all the white portion. Sprinkle the oranges lightly with sugar, and let them stand while the rice is cooking. Serve a portion of the orange on each saucerful of rice.
Rice with raisins
Carefully wash a cupful of rice, soak it, and cook as directed for Steamed Rice. After the rice has began to swell, but before it has softened, stir into it lightly, using a fork for the purpose, a cupful of raisins. Serve with cream.
Rice with peaches
Steam the rice and when done, serve with cream and a nicely ripened peach pared and sliced on each individual dish.
Browned rice benefits of grains
Spread a cupful of rice on a shallow baking tin, and put into a moderately hot oven to brown. It will need to be stirred frequently to prevent burning and to secure a uniformity of color. Each rice kernel, when sufficiently browned, should be of a yellowish brown, about the color of ripened wheat. Steam the same as directed for ordinary rice, using only two cups of water for each cup of browned rice, and omitting the preliminary soaking. When properly cooked, each kernel will be separated, dry, and mealy. Rice prepared in this manner is undoubtedly more digestible than when cooked without browning.
IMPORTANCE OF FOOD ELEMENTS
The purposes of food are to promote growth, to supply force and heat, and to furnish material to repair the waste which is constantly taking place in the body. Every breath, every thought, every motion, wears out some portion of the delicate and wonderful house in which we live. Various vital processes remove these worn and useless particles; and to keep the body in health, their loss must be made good by constantly renewed supplies of material properly adapted to replenish the worn and impaired tissues. This renovating material must be supplied through the medium of food and drink, and the best food is that by which the desired end may be most readily and perfectly attained. The great diversity in character of the several tissues of the body, makes it necessary that food should contain a variety of elements, in order that each part may be properly nourished and replenished.
The food elements
The various elements found in food are the following: Starch, sugar, fats, albumen, mineral substances, indigestible substances.
The digestible food elements are often grouped, according to their chemical composition, into three classes; vis., carbonaceous, nitrogenous, and inorganic. The carbonaceous class includes starch, sugar, and fats; the nitrogenous, all albuminous elements; and the inorganic comprises the mineral elements.
Starch is only found in vegetable foods; all grains, most vegetables, and some fruits, contain starch in abundance. Several kinds of sugar are made in nature’s laboratory; cane, grape, fruit, and milk sugar. The first is obtained from the sugar-cane, the sap of maple trees, and from the beet root. Grape and fruit sugars are found in most fruits and in honey. Milk sugar is one of the constituents of milk. Glucose, an artificial sugar resembling grape sugar, is now largely manufactured by subjecting the starch of corn or potatoes to a chemical process; but it lacks the sweetness of natural sugars, and is by no means a proper substitute for them. Albumen is found in its purest, uncombined state in the white of an egg, which is almost wholly composed of albumen. It exists, combined with other food elements, in many other foods, both animal and vegetable. It is found abundant in oatmeal, and to some extent in the other grains, and in the juices of vegetables. All natural foods contain elements which in many respects resemble albumen, and are so closely allied to it that for convenience they are usually classified under the general name of “albumen.” The chief of these is gluten, which is found in wheat, rye, and barley. Casein, found in peas, beans, and milk, and the fibrin of flesh, are elements of this class.
Fats are found in both animal and vegetable foods. Of animal fats, butter and suet are common examples. In vegetable form, fat is abundant in nuts, peas, beans, in various of the grains, and in a few fruits, as the olive. As furnished by nature in nuts, legumes, grains, fruits, and milk, this element is always found in a state of fine subdivision, which condition is the one best adapted to its digestion. As most commonly used, in the form of free fats, as butter, lard, etc., it is not only difficult of digestion itself, but often interferes with the digestion of the other food elements which are mixed with it. It was doubtless never intended that fats should be so modified from their natural condition and separated from other food elements as to be used as a separate article of food. The same may be said of the other carbonaceous elements, sugar and starch, neither of which, when used alone, is capable of sustaining life, although when combined in a proper and natural manner with other food elements, they perform a most important part in the nutrition of the body. Most foods contain a percentage of the mineral elements. Grains and milk furnish these elements in abundance. The cellulose, or woody tissue, of vegetables, and the bran of wheat, are examples of indigestible elements, which although they cannot be converted into blood in tissue, serve an important purpose by giving bulk to the food.
With the exception of gluten, none of the food elements, when used alone, are capable of supporting life. A true food substance contains some of all the food elements, the amount of each varying in different foods.
Uses of the food elements
Concerning the purpose which these different elements serve, it has been demonstrated by the experiments of eminent physiologists that the carbonaceous elements, which in general comprise the greater bulk of the food, serve three purposes in the body;
- They furnish material for the production of heat;
- They are a source of force when taken in connection with other food elements;
- They replenish the fatty tissues of the body. Of the carbonaceous elements, starch, sugar, and fats, fats produce the greatest amount of heat in proportion to quantity; that is, more heat is developed from a pound of fat than from an equal weight of sugar or starch; but this apparent advantage is more than counterbalanced by the fact that fats are much more difficult of digestion than are the other carbonaceous elements, and if relied upon to furnish adequate material for bodily heat, would be productive of much mischief in overtaxing and producing disease of the digestive organs. The fact that nature has made a much more ample provision of starch and sugars than of fats in man’s natural diet, would seem to indicate that they were intended to be the chief source of carbonaceous food; nevertheless, fats, when taken in such proportion as nature supplies them, are necessary and important food elements.
The nitrogenous food elements especially nourish the brain, nerves, muscles, and all the more highly vitalized and active tissues of the body, and also serve as a stimulus to tissue change. Hence it may be said that a food deficient in these elements is a particularly poor food.
The inorganic elements, chief of which are the phosphates, in the carbonates of potash, soda, and lime, aid in furnishing the requisite building material for bones and nerves.
Proper combinations of foods
While it is important that our food should contain some of all the various food elements, experiments upon both animals and human beings show it is necessary that these elements, especially the nitrogenous and carbonaceous, be used in certain definite proportions, as the system is only able to appropriate a certain amount of each; and all excess, especially of nitrogenous elements, is not only useless, but even injurious, since to rid the system of the surplus imposes an additional task upon the digestive and excretory organs. The relative proportion of these elements necessary to constitute a food which perfectly meets the requirements of the system, is six of carbonaceous to one of nitrogenous. Scientists have devoted much careful study and experimentation to the determination of the quantities of each of the food elements required for the daily nourishment of individuals under the varying conditions of life, and it has come to be commonly accepted that of the nitrogenous material which should constitute one sixth of the nutrients taken, about three ounces is all that can be made use of in twenty-four hours, by a healthy adult of average weight, doing a moderate amount of work. Many articles of food are, however, deficient in one or the other of these elements, and need to be supplemented by other articles containing the deficient element in superabundance, since to employ a dietary in which any one of the nutritive elements is lacking, although in bulk it may be all the digestive organs can manage, is really starvation, and will in time occasion serious results.
It is thus apparent that much care should be exercised in the selection and combination of food materials. Such knowledge is of first importance in the education of cooks and housekeepers, since to them falls the selection of the food for the daily needs of the household; and they should not only understand what foods are best suited to supply these needs, but how to combine them in accordance with physiological laws.