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The Survey, 1913 - Geology
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Page 62 - Fine gravel Coarse sand. Medium sand Fine sand Very fine sand. Silt Clay percent.
Page 62 - Description. Fine gravel. Coarse sand. Medium sand. Fine sand. Very fine sand. Silt. Clay.
Page 27 - When a soil can be made to produce a fair crop of clover, without an excessive expenditure, that soil can be successfully and profitably improved. It is therefore important that the first efforts in building up a soil should be directed toward the establishing of conditions which will be favorable for the growth of clover. From experiments conducted it seems advisable to sow clover without a nurse crop, -where the fertility of the soil is very low, since it will then have all of the moisture in the...
Page 56 - By reference to Figures 5 and 6 it will be observed that the average date of the last killing frost in the spring...
Page 79 - ... 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 62 - DIVISION OF SOILS: AR WHITSON, In charge. WJ GEIB,* Inspector and Editor. GUY CONREY, Analyst. TJ DUNNEWALD, Field Assistant and Analyst OJ NOER, Analyst and Field Assistant.
Page 66 - Assistant, Geography & History. EDWARD STEIDTMANN, Assistant, Limestones. RALPH E. DAVIS, Assistant, Report on Mine Costs. NATURAL HISTORY DIVISION: EDWARD A. BIRGE. In charge. CHAUNCEY JUDAY, Lake Survey. WILLARD G. CRAWFORD, Chemist. HA SCHUETTE, Chemist. WR DOORMAN, Assistant, Lakes. LG STECK, Assistant, Lakes. WATER POWER DIVISION: LEONARD S. SMITH, Engineer.
Page 62 - 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 57 - 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 78 - 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...

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