This reason is, that sort of decomposition to which it is subject. If the digestion of it is not very quick, if it stays too long in the stomach, or if, without too long a stay there, it meets in it with matters of a nature to hasten that decomposition, it undergoes in the stomach all the changes, which fall under our observation, out of it. The butyrous, the caseous, the serous parts separate; the whey sometimes occasions a quick diarrhœa; sometimes it passes off by the urinary passages, or by perspiration without nourishing; the other parts, if they stay in the stomach, are not long before they trouble it, cause uneasy sensations, bloatedness, loathings, cholics; and if one is not immediately affected by them, it is because they will have passed into the intestines, where they may, it is true, remain some time without a sensible prejudice, but they acquire there a singular acridity, and after a certain time they produce mischiefs which the delay will not have rendered the less dangerous; and, indeed, it may be established for a law, that should render one extremely circumspect in the prescription of it in dangerous cases, that if it is an aliment of which the digestion is the easiest, it is also that of which the indigestion is the most noxious. We have already mentioned the difficulties that BOERHAAVE found in the use of it; but however great they may be, the advantages to be drawn from it are so considerable, that it is worth while to study all possible means for surmounting them, and happily such means there are. They may be ranged under two classes; attentions to the regimen, and the medicines. Of these last I shall refer the discussion to one of the following articles. The attentions to the regimen are, first, the choice of the milk. From whatever species it may be determined to procure it, the female that furnishes it should be healthy, and live regular: Secondly, during the time of taking it, all aliments should be avoided that can turn it sour; such are all fruits, raw or prepared, and in general every thing that is acid: Thirdly, it must be taken at times very distant from other aliments; it not taking kindly any mixture: Fourthly to take only a little of it at a time: Fifthly, all the while to take care of keeping the breast, the abdominal region, and the legs extremely warm: and, above all, Sixthly, (for without this precaution all the others would be useless,) to be very moderate as to the quantity of even the best chosen aliments. During this recourse to milk, there should be no trouble given to the stomach; the smallest over-load, the slightest indigestion, leaves in it a principle of corruption, which presently turns the milk, and may, of the most wholesome of aliments, make a poison sometimes very violent, and, at least, almost always infallibly one, in a greater or less degree.