. Elements of Philippine agriculture. Agriculture. PHILIPPINE AGRICULTURE the rocks of the earth, running water also is very active. In cold countries, ice has helped to do this work. As is true of walls, some parts of rocks are softer than others, and disintegrate more quickly. Most of the hills. Fig. 20. Rocks standing out of the sea on the coast of Northern California and mountains in the world are the hard spots which have been left, while the softer places around them have worn away. KINDS OF SOIL, BY ORIGIN Residual Soil and Loess. While the soil was forming from the rocks, some of it wa
. Elements of Philippine agriculture. Agriculture. PHILIPPINE AGRICULTURE the rocks of the earth, running water also is very active. In cold countries, ice has helped to do this work. As is true of walls, some parts of rocks are softer than others, and disintegrate more quickly. Most of the hills. Fig. 20. Rocks standing out of the sea on the coast of Northern California and mountains in the world are the hard spots which have been left, while the softer places around them have worn away. KINDS OF SOIL, BY ORIGIN Residual Soil and Loess. While the soil was forming from the rocks, some of it was carried away, and some remained at or near the places where it was formed. The latter kind is called residual soil. Some fine soils are so light that the wind can carry them as dust. Soil formed by the settling, or deposition, of fine particles from the air is called loess; it is usually a very compact soil, because it is made up entirely of fine particles. Dust blown into the air by volcanoes sometimes settles as Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Copeland, Edwin Bingham, 1873- [from old catalog]. Yonkers-on-Hudson, N. Y. , and Manila, World book company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagriculture, bookyear
