INTRODUCTION
Suppose you should wake up Christmas morning and find yourself to be the owner of a bicycle. It is a company-new wheel and
everything is in perfect working purchase. The bearings are well oiled, the nickel is vivid and shiny and it is all tuned up and primed for use. If you are a aware, sensible boy you can have fun with it for a long time until finally, prefer the “One Hoss Shay” in the poem, it wears out and goes to portions all at once. On the other hand, if you are careless or indifferent or sluggish you may permit the machine to get out of purchase or to become rusty from disuse, or perhaps when a nut works loose you neglect it and have a breakdown on the way, or you may forget to oil the bearings and in a short time they commence to squeak and put. If you are different kind of a boy, you may be aware enough about oiling and cleaning the wheel, but you may also be reckless and head—strong and will jump over curbstones and gutters or ride it over rough roads at a hazardous rate of speed, and in this way shorten its lifespan by abuse just as the careless boy may by neglect. It is just so with the human body which, after all, is a machine too, and, more than that, it is the most wonderful and perfect machine in the earth. With care it should last many years. With abuse or neglect it may very soon put out. The boy who neglects his health is prefer the boy who allows the bearings on his wheel to become dry or the metal parts rusty. The chief difference is that when thebicycle wears out or breaks down we may replace the parts or still get different machine, but when our health is injured, money will not restore it. In purchase to keep well we need to observe certain rules of health. By exercise we keep the working parts in good purchase. If we are sluggish or indolent we are prefer the bicycle that is allowed to go to portions from lack of use. If we are reckless and foolhardy we may injure some part of the delicate machinery from excessive exercise or strain. Play is the most natural thing in the earth but we need to use judgment in our Play. A boy or girl who is not allowed to Play or who is restrained by too anxious parents is unhappy indeed. About all animals Play. We know, for instance, that puppies, kit
