The Physical Properties of Soils : a Laboratory Guide
The book The Physical Properties of Soils : a Laboratory Guide was written by author Mccall, Arthur Gillett, 1874- Here you can read free online of The Physical Properties of Soils : a Laboratory Guide book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Physical Properties of Soils : a Laboratory Guide a good or bad book?
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T^final temperature of water in the calorimeter. C=specific heat. References : King, "Physics of Agriculture," p. 29 and pp. 215, 216. Wiley, "Agricultural Analysis," Vol. I., pp. lOO-IIO. THE PHYSICAL PROPERTIES OF SOILS 79 STUDENT'S NOTES AND REPORT So THE PHYSICAL PROPERTIES OF SOILS SIXTEENTH EXERCISE MECHANICAL ANALYSIS OF SOILS- BOTTLE METHOD By this method an approximate analysis can be ■ made without the use of a centrifugal machine. The silt and clay groups are estimated together. Dupl...icate analyses should be made upon prepared stock samples, in order to give the stu- dent practice. As soon as he is familiar with the details of the sepa- ration, field samples should be used. For the method of preparing field samples see the instruc- tions given on page 96. METHOD OF MAKING THE SEPARATIONS Take twenty or thirty grams of dry, pulver- ized, sifted soil; mix thoroughly, and dry in the oven and cool in a desiccator. Weigh out two 5-gram portions. Ignite one of these samples and calculate the loss on ignition.
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