secretion, which constantly covers it.

By some it is called the nervous coat of the stomach. It has a great number of little glands, which pour their secretions into the stomach, while the work of digestion is going on. Branches of blood-vessels and nerves are

found in great abnndance in this part.

The gastric juice, found in the stomach, and which is so necessary in digestion, is supposed to proceed from the extremities of the minutest arteries; as anatomy has never revealed a separate set of glands for its production. Its chief use is to dissolve any substance that enters the stomach. It also produces an opposite effect, namely, coagulation. This curdling quality is very useful in infancy, when the food is generally fluid, and would be absorbed altogether, did not this power of the gastric juice form that which was nutritious into a solid mass, to be acted upon by the digestive functions. Another quality gives it power to counteract putrefaction.

While we are eating, the stomach is nearly passive, merely yielding to the food which distends it. When, however, we cease to eat, it begins to react; first the muscles contract, and by degrees increase their motion, until there is a regular vermicular or worm-like action established, contracting the stomach in all directions, thus moving its contents from the greater to the lesser extremity The gastric juice, the mucous, and the other fluids, then flow into the cavity, and the food becomes softened. This is the first step towards digestion, and the regular order in which it proceeds. When the food next the coats of the stomach has become perfectly saturated, it is moved on by the muscular contraction towards the pylorus, and the next layer under

goes the same process. Thus the food in the icinity of the pylorus, is always best digested, while that in the interior, or farthest from the coats of the stomach, is least acted on.

I have much to say with respect to the introduction of food into the stomach at improper times, and also on the causes of flatulence and impaired digestion, but must defer it until my next.

No. II.

WHEN the stomach is in a healthy state, and the food such as to perfectly agree together, the work of digestion goes forward without producing any air, or more properly, gas. You will see by this how few stomachs are in a natural and healthy condition; as flatulence, or wind in the stomach, is so very common. The reason is, the food which persons usually mix together, does not agree; that is, it is different in kind and quality, and will therefore cause commution and rebellion in the stomach. You may have some idea of the state of the stomach when this is the case, by imagining the situation of a school, where all the scholars are of contrary views and feelings respecting the discipline and regula. tions, and each is desirous of setting up his will as law, instead of submitting to the laws already established. Do you not see how vain it would be to expect order and harmony, while such a state of hings should con. tinue?

hope my readers will think of this, when they want to mix up every thing at one meal. So also when you eat between meals, you create disorder and confusion If you are constantly eating, you do not give the stomach time to digest a regular meal, but retard the work by thus introducing fresh food. Some inconsiderate and ignorant people are always eating, and always complaining of indigestion and loss of appetite; and how can it be otherwise? Our meals should be simple, and taken at regular intervals, never nearer than six hours, as that time is required to digest a meal, and give the stomach rest. No food should ever be eaten before the preceding meal is perfectly digested, and the organs have rested awhile. We know how necessary rest is for the other organs; why should not this large and laborious one require the same?

It is very important that the kinds of food taken at once, should be such as can be digested in the same space of time; and as some articles require a much longer time than others, this also claims our attention. Indeed, it is of so much consequence, that a very experienced physician said, he cared little about the quality of a dyspeptic's food, provided it was of one kind, and not of too great a quantity. I do not agree with him altogether, but it shows the importance men of science attach to this thing. How necessary, then, that we should undersand the functions and powers of our bodies, in order to preserve them from disease. And if one member suffers, all suffer, especially do all other organs sympathise with this great centre.

I think my friends must be convinced by this time, that if they are sick, they are the authors of their own

pain and suffering; for the Maker of their bodies has declared He does not afflict willingly, but it is the effect of their own transgressions; so they are merely paying up old debts, which is for their own benefit.

A person who has injured and enieebled his body, unfits himself for usefulness, and cannot, therefore, answer the purpose for which he was created. We were made to glorify God in our bodies and spirits, which are his; and if we fail to accomplish his designs, he will not hold us guiltless. Let us then seek to know his laws with regard to our bodies, assured that by so doing we shall be better qualified to fulfil the rest of our duties, as intelligent and rational creatures.

J. B.

Man, when properly civilized, will live purely from the productions of the earth. In the savage state, he will live like the wolf, dog, tiger, and hog.

Sleep, soon after eating, retards digestion, and leads to debility and derangement of the stomach.

Fans are used by those mostly pinched up by corsets They are made to fly rapidly, when the poor creature pants for the atmosphere. Under ssch circumstances, would it not be our duty to instruct those who oppose themselves?

THE following represents the jaws of a child, about the same age of the Orang Outang, on page 208, and is inserted here for the purpose of comparing it with amimals inferior to man, in the order of comparative anatomy and in order to find out the original food of the human species, and the different animals, as we find them in their natural state.

The drawing shows the number and arrangement of the infant or temporary teeth, and their nervous connection with the general system. There are twenty teeth; ten in the upper and ten in the lower jaw: the same as will be seen by looking at the drawing of the Orang Outang.

In the engraving we see only the left side, and there. fore but ten of the teeth, five above and five below.

The pulps, or rudiments of the second or permanen set, can be seen directly under the roots of the firs teeth.