this would never be the case if the stomach were always in a healthy state. When oily substances, as gravy, etc., are in the stomach, the gastric juice cannot act on them; so the bile flows from the liver, enters the stomach, and helps to remove them.

PANCREATIC FLUID.

19. This fluid is secreted by the pancreas, a gland situated behind the stomach. This gland secretes a very little fluid, of a yellow color, salt taste, without odor, similar to the saliva. Its secretion is not increased during digestion, yet many suppose it assists in forming the chyle.

TEARS.

20. The tears are secreted by the lachrymal gland, behind and at the corner of the eyes. They have a salt taste, and are inodorous.

21. The above are some of the principal secretions; and, from what has been said of them, you will again see how very important it is to possess good blood; for from this very blood is formed the tears, the gastric juice, the bile, the bones, etc.

22. There are little vessels situated all over the body, one of which has a little fluid to make the finger-nail. another, the joint; another, the bone; one has a sub stance which helps to give the eyes their beautiful

18. When is the bile necessary to the stomach? 19. What is the fourth secretion of the glands? What organ secretes the pancreatic juice? What are the properties of this fluid? 20. What is the fifth secretion of the glands? By what are the tears secreted? What are these properties? 21. What is a conclusive reason for us to have good blood? 22. Name some of the uses of the little vessels situated over the body!

HEART COMPARED WITH MACHINERY.

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color; another, to help form the soft hair; and so on, All these little vessels have their respective office to fulfil, which is done without any confusion, in perfect system and order.

23. Hence we see that the work of secretion is a beautiful system, nicely arranged by our Creator, and should cause us to love and admire that great Being who has formed our bodies, and who sustains us by his goodness and power.

24. What a wonderful body we have to keep in order; just think of the heart, beating, beating, more than one hundred thousand times in a day, month after month, for seventy or eighty years, without once being out of order.

25. Everything in machinery needs to be thoroughly repaired occasionally, however perfect the construction may be. A perfectly finished wheel will not always revolve without being oiled. The most beautiful house

needs frequent repairs.

26. But such is not the case with our heart. It is ever faithful to perform its duty, if we are only faithful in taking care of it. It never grows weary, nor falls asleep; but, whether we sleep or wake, it is untiringly at work.

27. Then what a perfect frame-work we have, finished and covered so nicely with skin and muscles! We

22. In what way do these vessels perform their respective office? 23. How should we regard the work of secretion? What feelings ought it to incite in us toward our Creator? 24. Why should we ever think of our bodies? Is there anything remarkable about our hearts? 25. What is a fact in regard to all machinery? How does this apply to a wheel or a house? 26. Does the same principle hold true with respect to our heart? 27. What nice adaptations are there in our frame-works that should call forth our admiration?

have eyes for seeing, and ears for hearing; we can discern pleasant odors, and we can taste agreeable food. We should surely have feelings of gratitude to our Maker for all that he has done for us, and ought to feel under the greatest obligations to keep all these different parts in order; to imbibe no foolish and evil habit which will weaken the powers of our bodies, or the faculties of our minds. Some have naturally more vitality than others; but all can enjoy a measure of health for many years, if they will but obey the laws of health.

28. All organized beings-by which I mean those that have functions or organs to nourish and sustain them are limited in their periods of existence. The length of life in plants, animals, and man, depends very much on the time which it requires for them to mature. Those which mature or ripen quickest, soonest come to decay; those persons whose bodies are perfected the quickest, die the soonest.

29. The little sapling has to grow many, many years, before it attains to the full stature of an oak; yet, when it is matured, it will live for ages, sometimes for a thousand years. But the annual requires but a few months to bring it to perfection. We plant the seed; in a few weeks the tiny leaves appear, expand, bud, blossom, and the plant dies. The same holds true in regard to

man.

Man rarely comes to maturity before twenty or

27. Under what obligations are we? In what way can all enjoy a measure of health? 28. What are organized beings? Do they always exist? On what does the length of life in man, plants, and animals depend? Explain this fact. 29. What is said of the growth and duration of the oak? In what way does the annual differ from the oak? What is the difference between man and the lower animals in regard to maturity and decay?

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thirty years, and his life is proportionately long, being three score years and ten-seventy years-when he takes care of himself; but some of the lower animals attain their full size and growth in a few years, and scarcely ever live over twenty or thirty.

30. In early youth, before the body is matured, the functions of digestion, nutrition, etc., are very active, and are rapidly performed. The brain is larger, and the nervous system is then more developed than in after periods of life. The child eats, his food nourishes his body, and he grows rapidly; but the man eats a much greater quantity of food, yet we can scarcely perceive any difference in his stature or size from one year to another.

31. There is a period when the body has attained its full growth, called maturity. When this period is reached, there appears for a little time to be neither progress nor decline. Though there is in our system a power to repair all injuries which the body receives, to heal all the wounds, and to unite all the bones; yet the body will finally decay, regardless of all our exertions to guard and preserve it.

32. We cannot see that this decay is necessary from the nature of the body, neither can it arise from the gratification of the artificial wants of civilized life; for savages do not retain their faculties as long as those who are in a civilized state. But it appears to be the

30. In what condition are all the functions in youth? What is said of the brain and nervous system at that period? What is the effect of the food? Has the food the same effect on the man? 31. What is meant by maturity? What is the condition of the body at this time? Is there anything in our systems to enable us to resist injuries, etc.? Will this power always continue? 32. Do we know the causes of decay? What appears to be one cause?

order of nature, that man should live, then die. When adult life has passed, then the organs begin to decay.

33. The nervous system is first affected; the hearing, sight, etc., grow feeble; the muscles become stiff, hardened, and difficult to contract, so that they cannot well support the body; hence old persons are inclined to stoop and totter, and therefore require the additional assistance of a cane or staff. Then the circulating system begins to decline; bony substances gather around the veins and arteries, and thus interrupt the free passage of the blood. The lungs cannot breathe or inhale the air so well, therefore the blood is not so well purified.

34. These systems become more feeble, till they are no longer able to perform their various offices; then death ensues. Many accidents are fatal, and produce death in aged persons, because their bodies become enfeebled, and can neither assist nor repair injuries as well as in youth. The bones of children easily unite; but in after years there is a want of that strength and vigor, so that when the bones are shattered or injured, the injury cannot well be repaired.

35. Children, I hope by these few lessons and instructions, you will have been incited to think more of the functions of your bodies, and that the older you grow the more you will become interested in this important study. When you see flies walking and balancing themselves on the ceiling, think, and try to find out why they can support themselves there without falling. So

32. What takes place after adult life has passed? 33. What system is first affected? Why do aged persons require an artificial support? What system next decays? How does this affect the blood? 34. When does death ensue? Why are accidents more fatal to the aged than to the young? What is said in regard to the bones of children? 35. What ought these lessons to incite and encourage in children ?