This should be regulated by a variety of considerations. The young which may be destined for maturity, should be supplied with milk from the dam until weaning-time. No food can be substituted for the well-filled udder of the parent, which is so safe, healthful, and nutritious. If from any cause there is deficiency or total privation, it must be made up by that kind of food, meal-gruel, &c., which, in its composition, approaches nearest in quality to the milk. At a more advanced age, or the time for weaning, grass, hay, roots, or grain, may be substituted, in quantities sufficient to maintain a steady but not a forced growth. Stuffing can only be tolerated in animals which are speedily destined for the slaughter. Alternately improving and falling back, is injurious to all stock. An animal should never be fat but once. Especially is high feeding bad for breeding animals. Much as starving is to be deprecated, the prejudicial effects of repletion are still greater. The calf or lamb intended for the butcher, may be pushed forward with all possible rapidity. Horses or colts should never exceed a good working or breeding condition.

Purposes fulfilled by different Kinds of Food.

The objects designed to be answered by food, are to a certain extent the same. All food is intended to meet the demands of respiration and nutrition, and fattening to a greater or less degree. But some are better suited to one object than others, and it is for the intelligent farmer to select such as will most effectually accomplish his particular purposes.

The very young animal requires large quantities of the phosphate of lime for the formation of bone; and this is yielded in the milk in larger proportions than from any other food. The growing animal wants bone, muscle, and a certain amount of fat, and these are procured from the grasses, roots, and grain; from the former when fed alone, and from the two latter when mixed with hay or grass.

Horses, cattle, and sheep need hay to qualify the too watery nature of the roots, and the too condensed nutritiveness of the grain. Animals that are preparing for the shambles, require vegetable oils or fat, starch, sugar, or gum. The first is contained in great abundance in flax and cotton-seed, the sun-flower, and many other of the mucilaginous seeds. Indian corn is the most fattening grain. The potato contains the greatest proportion of starch, and the sugar-beet has large quantities of sugar, and both consequently are good for stall-feeding. The ripe sugar-cane is perhaps the most fattening of vegetables, if we except the oily seeds and grain. The Swedes turnip is a good food to commence with fattening cattle and sheep; but where great ripeness in animals is desired, they should be followed with beets, carrots or potatoes, and grain.

The table of the average composition of the different crops, which we subjoin from Johnston, shows the comparative qualities of various kinds of food, and it will be found a valuable reference for their nutritive and fattening qualities. He says, "In drawing up this table, I have adopted the proportions of gluten, for the most part, from Boussingault. Some of them, however, appear to be very doubtful. The proportions of fatty matter are also very uncertain. With a few exceptions, those above given have been taken from Sprengel, and they are, in general, stated considerably too low. It is an interesting fact, that the proportion of fatty matter in and immediately under the husk of the grains of corn, is generally much greater than in the substance of the corn itself. Thus I have found the pollard of wheat to yield more than twice as much oil as the

fine flour obtained from the same sample of grain. The four portions separated by the miller from a superior sample of wheat grown in the neighborhood of Durham, gave of oil respectively: fine flour, 1·5 per cent.; pollard, 2·4; boxings, 3·6; and bran, 3·3 per cent. Dumas states that the husk of oats sometimes yields as much as five or six per cent. of oil." The columns under starch, &c., and fatty matter, denote the value for respiration or sustaining life, and the fattening qualities; that under gluten, the capacity for yielding muscle and supporting labor; and saline matter indicates something of the proportions which are capable of being converted into bones.

Water.Husk or
woody fibre.		Starch, gum,
and sugar.		Gluten, albumen,
legumen, &c.		Fatty
matter.		Saline
matter
Wheat,16155510 to 152 to 4 J.2·0
Barley,15156012? 2·5 J.2·0
Oats,162050 14·5?5·6 J.3·5
Rye,12106014·53·01·0
Indian corn,14 15?5012·05 to 9 D.1·5
Buckwheat, 16? 25?5014·50·4?1·5
Beans,16104028·02 +3·0
Peas,13 85024·02·8?2·8
Potatoes, 75? 5? 12? 2·250·30·8 to 1
Turnips,853101·2?0·8 to 1
Carrots,853102·00·41·0
Meadow hay,1430407·12 to 5 D.5 to 10
Clover hay,1425409·33·09
Pea straw,10 to 15254512·3 1·55
Oat do.1245351·30·86
Wheat do.12 to 1550301·30·55
Barley do.do.50301·30·85
Rye do.do.45381·30·53
Indian corn do.1225523·01·74

This table, it will be perceived, is far from settling the precise relative value of the different enumerated articles. An absolute, unchanging value can never be assumed of any one substance, as the quality of each must differ with the particular variety, the soil upon which it is grown, the character of the season, the manner of curing, and other circumstances. An approximate relative value is all that can be expected, and this we may hope ere long to obtain, from the spirit of analytical research, which is now developed and in successful progress. More especially do we need these investigations with American products, some of which are but partially cultivated in Europe, whence we derive most of our analyses. And many which are there reared, differ widely