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The Survey, 1914 - Geology - 85 pages
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Page 61 - Description. Fine gravel. Coarse sand. Medium sand. Fine sand. Very fine sand. Silt. Clay.
Page 61 - Very litle of the type is for sale, but prices generally quoted range from $60 to $100 an acre. The following table gives the results of mechanical analyses of samples of the soil and subsoil of this type : Mechanical Analyses of Holston Silt Loam.
Page 77 - August, and nearly 70% from April to September, inclusive. June has the heaviest rainfall, averaging 4.1 inches, while July averages 4 inches and May 3.9 inches. The precipitation during the winter, on the other hand is slight; December, January, and February each averaging from 1 to 1.5 inches of rain and melted snow. The average rainfall for the state during the winter is 3.9 inches, during spring 8.3 inches, during summer 11.4 inches and during autumn 7.4 inches.
Page 85 - Figures 5 and 6 it will be observed that the average date of the last killing frost in the spring...
Page 16 - The following table shows the results of mechanical analyses of samples of the soil and subsoil of the King clay : Mechanical analyses of King clay.
Page 95 - Tracts of 10 acres and over are mapped, but often areas of even smaller extent are shown. The soil map is prepared by trained men, who go over a county thoroughly, and examine the soil by making a sufficient number of borings to a depth of 36 inches to keep account of all variations. A report is also made, to accompany and explain the map...
Page 77 - Bureau over a period of 30 years from 1882 to 1911, inclusive, show that there are on the average three ten-day periods during each growing season when the amount of rainfall is so slight that crops on a reasonably heavy soil (Miami silt loam) actually suffer from the lack of moisture.
Page 51 - There is also some dangers of the young plants being damaged by the hot sun when the nurse crop is removed. The field intended for clover should be plowed in the fall, or as early as possible in the spring, and a top dressing of ground limestone applied at the rate of 2,000 pounds per acre. The field should be harrowed at short intervals to kill all weeds, and this harrowing should be kept up until about the middle of May. Fifteen pounds of seed per acre should be sown and covered to a depth of 11/^...
Page 69 - As compared with other portions of this country, Wisconsin has a total rainfall equaling that of central Oklahoma and Kansas, northern Iowa, Michigan, Northwestern New York, or the Puget Sound Basin of Washington. But owing to its northerly location, the...
Page 76 - Any one of these factors may determine the type of agriculture which can be practiced to best advantage. The distribution of rainfall...

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