[Boys the Hope of the World.]—A nation's most valuable property is its boys. A nation which has poor, weakly, vicious boys will have still weaker, more vicious and untrustworthy men. A country with noble, virtuous, vigorous boys, is equally sure of having noble, pious, brave, and energetic men. Whatever debases, contaminates, or in any way injures the boys of a country, saps and undermines the very foundation of the nation's strength and greatness. Save the boys from vice and crime, give them good training, physically, mentally, and morally, and the prosperity of the nation is assured.

[Man the Masterpiece.]—When a skillful artist perfects a work of art, a painting, a drawing, a statue, or some other work requiring great talent and exceeding all his other efforts, it is called his masterpiece. So man is the noblest work of God, the masterpiece of the Almighty. Numerous anecdotes are told of the sagacity of dogs, horses, elephants and other animals, of their intelligence and ingenious devices in overcoming obstacles, avoiding difficulties, etc. Our admiration and wonder are often excited by the scarcely less than human wisdom shown by these lowly brothers of the human race. We call them noble animals; but they are only noble brutes, at best. Compared with man, even in his most humble form, as seen in the wild savage that hunts and devours his prey like a wild beast, a lion or a tiger, they are immeasurably inferior. And in his highest development, man civilized, cultivated, Christianized, learned, generous, pious, certainly stands at the head of all created things.

Boys, do you love what is noble, what is pure, what is grand, what is good? You may each, if you will, become such yourselves. Let us consider for a moment

[How a Noble Character is Ruined.]—A noble character is formed by the development of the good qualities of an individual. A bad character is formed by the development of bad traits, or evil propensities. In other words, sin is the cause of the demoralization of character, the debasing of the mind, the loss of nobility of which we see so much around us in the world. Sin is the transgression of some law. There are two kinds of sins: those which are transgressions of the moral law, and those which are transgressions of physical laws. Both classes of sins are followed by penalties. If a person violates the laws of health, he is just as certain to suffer as though he tells a falsehood, steals, murders, or commits any other crime. Perfect obedience to all of nature's laws, including of course all moral laws, is necessary to perfect health and perfect nobleness of character. The nature of these laws and the results of transgression will be understood after we have taken a hasty glance at

[The Marvelous Human Machine] which we call the body. All the inventions and devices ever constructed by the human hand or conceived by the human mind, no matter how delicate, how intricate and complicated, are simple, childish toys compared with that most marvelously wrought mechanism, the human body. Let us proceed to take this wonderful machine in pieces and study its various parts and the manner in which they are put together.

[The Two Objects of Human Existence.]—The objects of this wonderfully formed mechanism are two: 1. The maintenance of an individual life; 2. The production of similar individuals which shall also have the power of maintaining individual lives. The same may be said of every plant that grows, and every animal. Each tree, plant, and shrub has some useful service to perform while it lives, in addition to the production of seed from which other plants may grow. For example, the object of the majestic oak which towers high and broadly spreads its leafy branches is not to produce acorns merely, but to give place for birds to build their nests, to present an inviting shade for cattle, and to afford protection in a variety of ways to numerous living creatures which need such aid. The same may be said of all vegetable growths, each particular plant having its peculiar purposes to fulfill, and all together acting as purifiers of the air for the benefit of man and lower animals.

The principle is equally true as applied to lower animals, as is evidenced by the numerous ways in which domestic animals are utilized. Indeed, it seems that the prime purpose of life, not only with all lowly living creatures, as plants and animals, but with man as well, is to live and act as individuals. But the important function of reproduction, or producing other similar individuals, though incidental, is necessary to the perpetuation of the race or species.

In order that an individual human being may live and develop, it is necessary that he should eat, drink, digest, and assimilate, and that he should be able to move about, to perceive,—that is, to hear, see, feel, smell, taste, determine weight and distinguish temperature,—to think, and to express ideas in language. In order to keep his vital machinery in order, it is necessary that the body should also be able to repair injuries which may occur in consequence of wear or accident, and to remove out of the way wornout material which would otherwise obstruct the working of the delicate machinery of which his body is constructed. Each of these functions requires special organs and apparatuses to carry on the work; and these we will now briefly consider:—

[The Nutritive Apparatus.]—This consists of organs for the purpose of taking in food or nourishment, digesting it, and distributing it throughout the body wherever it is needed. These are chiefly the mouth and teeth for receiving and chewing the food, the stomach and intestines for digesting and absorbing it, and the heart and blood-vessels for distributing it to the body.

[The Moving Apparatus.]—For the purpose of producing motion, we have the muscles and the bones, by which the food is received, masticated, and swallowed, the blood circulated, the body moved about from place to place, and speech, expression, respiration, and many other important functions performed.