in individual life and in society are so manifold that we accept many of the finest products of skill and art as if they were natural products—as if gold coins, silk dresses, and fine pictures grew on the bushes and only waited to be picked. The thousand-fold applications of natural science to human industry and comfort deserve to be perceived as
the result of labor and inventive skill. Our much-lauded steam engines, telegraph microscopes, sewing machines, reapers, iron ships, and printing presses, are not examples of a few, but of myriads of things that natural science has secured. But how many children on leaving the common school understand the principle involved in any one of the machines mentioned, subjects of common talk as they are? As children leave the schools at fourteen or fifteen they should know and appreciate many such things, wherein man, by his wit and ingenious use of natures forces, has triumphed over difficulties. How are glass and soap made? What has a knowledge of natural science to do with the construction of stoves, furnaces, and lamps? How are iron, silver, and copper ore mined and reduced? How is sugar obtained from maple trees, cane, and beet root? How does a suction pump work and why? Without a knowledge of such applications of natural science we should be thrown back into barbarism. These things also, since they form such an important part of every child's environment, should be understood, but not for direct utility.
