Bulletin, Issues 1-16U.S. Government Printing Office, 1895 - Soil science |
Contents
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Common terms and phrases
alkali flat amount of salt amount of water average binding posts bright tobacco carbon cent of clay cent of moisture cent of water CIGAR TOBACCO Clarksville Coarse sand Collected by agents content of soils County crops cubic centimeter cultivation DEPARTMENT OF AGRICULTURE depth ditch Division of Soils electrical method electrical resistance electrodes Etonia Experiment Station feet field filler Florida Fort Meade grass hammock High pine land Hopkinsville hygrometer instrument insulated irrigation June leaf limestone loess Mechanical analyses Medium sand miles Mois moisture content moisture determinations ohms overirrigation plants plat Plate prairie published in Bulletin quantity Rain rainfall salt solution season seepage waters silt sodium chloride soil moisture soils contain soluble salt content specific resistance Subcarboniferous subsoils sulphate surface taken temperature cell texture tion tobacco districts tobacco land tobacco soils truck land ture United States Department water content wheat Winterhaven wire wrapper
Popular passages
Page 13 - Soils containing a large proportion of clay, of which for other reasons are very retentive of moisture, tend to produce large, heavy plants, which cure to a dark brown or red. A lighter sandy soil produces a plant having a thinner and more delicate leaf, which by proper treatment can be cured to a bright red mahogany or fine yellow color. So marked is this influence of soil upon the quality of the tobacco, that a fine, bright tobacco land may be separated by only a few feet from a heavier clay soil,...
Page 118 - ... that straw, leans upon his elbows to pull himself out of this soft sheath, sobs frenziedly; the sand rises. The sand reaches his shoulders, the sand reaches his neck; the face alone is visible now. The mouth cries, the sand fills it; silence. The eyes still gaze, the sand shuts them; night. Then the forehead decreases, a little hair flutters above the sand; a hand protrudes, comes through the surface of the beach, moves and shakes, and disappears.
Page 118 - ... medium in which man can no more walk than the fish can swim. He throws off his load, if he has one ; he lightens himself like a ship in distress.
Page 118 - Behold him waist deep in the sand. The sand reaches his breast ; he is now only a bust. He raises his arms, utters furious groans, clutches the beach with his nails, would hold by that straw, leans upon his elbows to pull himself out of this soft sheath; sobs frenziedly; the sand rises; the sand reaches his shoulders; the sand reaches his neck; the face alone is visible now. The mouth cries, the sand fills it — silence. The eyes still gaze, the sand shuts them — night.
Page 117 - IT sometimes happens that a man, traveler or fisherman, walking on the beach at low tide, far from the bank, suddenly notices that for several minutes he has been walking with some difficulty. The strand beneath his feet is like pitch ; his soles stick in it ; it is sand no longer ; it is glue. The beach is perfectly dry, but at every step he takes, as soon as he lifts his foot, the print which it leaves fills with water. The eye, however, has noticed no change ; the immense strand is smooth and...
Page 118 - He draws them out of the sand; he will retrace his steps. He turns back, he sinks in deeper. The sand comes up to his ankles; he pulls himself out and throws himself to the left — the sand half leg deep.
Page 118 - ... end, which seizes you erect, free and in full health, which draws you by the feet, which, at every effort that you attempt, at every shout that you utter, drags you a little deeper, which appears to punish you for your resistance by a redoubling of its grasp, which sinks the man slowly into the earth while it leaves him all the time to look at the horizon, the trees, the green fields, the smoke of the villages in the plain, the sails of the ships upon the sea, the birds flying and singing, the...
Page 33 - ... the land with tile drains, and so hasten the reclamation. SUMMARY OF THE INVESTIGATIONS AND CONCLUSIONS. The results of these investigations show that there is no sodium carbonate or black alkali in the soil. The source of the alkali is in the sandstone, and particularly in the shale or slate rocks from which the soils have been derived. Before irrigation was introduced the salts were present in the soils in rather large amounts, but well distributed, and not in such large quantities as to be...
Page 118 - He is condemned to that appalling interment, long, infallible, implacable, impossible to slacken or to hasten, which endures for hours, which will not end, which seizes you erect, free and in full health, which draws you by the feet, which, at every effort that you attempt, at every shout that you utter, drags you a little deeper, which appears to punish you for your resistance by a redoubling...
Page 86 - Dakota group, the sands, sandstones, and clays are most abundant, and exert the greatest influence upon the soil. The clays are valuable for brick and pottery. Where they form continuous strata of considerable extent, with a level surface, the water is retained, causing boggy or swamp land. By themselves these clays impart too great heaviness and tenacity to the soil, but with a suitable proportion of sand intermixed a good loam is formed. An abundance of sand and sandstone is everywhere present...