Elements of Agriculture: With Industrial Lessons

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D.C. Heath & Company, 1902 - 141 էջ
 

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Common terms and phrases

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Էջ 62 - ... one of the most important as well as one of the most legitimate sources of his power.
Էջ 120 - Book, 65 cts. The New Arithmetic. By 300 teachers. Little theory and much practice. An excellent review book. 65 cts. Walsh's Arithmetics. On the "spiral advancement
Էջ 120 - AtwOOd's Complete Graded Arithmetic. Presents a carefully graded course, to begin with the fourth year and continue through the eighth year. Part I, 30 cts.; Part II, 65 cts. Badlam'S Aids tO Number. Teacher's edition — First series, Nos. i to 10, 40 cts.; Second series, Nos. 10 to 20, 40 cts. Pupil's edition — First series, 25 cts.; Second series, 25 cts. Branson's Methods in Teaching Arithmetic. 15 cts. Hanus's Geometry in the Grammar Schools. An essay, with outline of work for the last three...
Էջ 120 - ... concepts are to be taught concretely, by much measuring, and by the making of models and diagrams by the pupils. 30 cts.
Էջ 47 - There should be a place for everything, and everything should be kept in its place when not in actual use.
Էջ 59 - These substances are sometimes present in the soil, but not in a form in which the plant can use them ; when thus present and unavailable, they may often be rendered available by proper cultivation or management of the soil. If they are not present in the soil, they must be supplied through fertilizers before the crop will grow well." LESSON XVI. STORY OF THE SOIL (Continued). I. "Soils must be in good 'physical' or 'mechanical ' condition, too,
Էջ 62 - Rains fall, and much of the water sinks into the earth — is absorbed by it ; then, in summer, as the water at the surface is changed to vapor (evaporated) by the sun, and carried away by the air and by the winds, the water that was absorbed, and that is held deeper down in the earth, rises toward the surface, and supplies the fields and the forests with moisture.
Էջ 61 - ... soil and far better supplied with food and moisture than could prevail in a cloddy soil. A cloddy or compact soil may have within it the elements necessary to plant growth, and may be rendered productive simply by being fined or mellowed. Such a soil may be mellowed by the use of machines; by under-drainage, by fall plowing, or by applying lime, ashes, sand, or other materials that tend to break up the lumps.
Էջ 67 - feed" in the moist soil in which they live, while the leaves gather nourishment from the refreshing breezes in which they wave. But the sunshine must warm the bosom of the earth, and must kiss the leaf and the flower before the lifeforce within them can do its work.

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