The book 39 Experiments in Soils was written by author Quear, Charles Lorin, 1890- [from Old Catalog] Here you can read free online of 39 Experiments in Soils book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is 39 Experiments in Soils a good or bad book?
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Object. Capillary water refers to that water which passes through a soil due to the attraction which the soil grains have for the water. The oil which passes through a lamp wick is a very good example of capillarity. The oil passes upward because the wick attracts and holds it. Water passes up through a soil in the same manner and this moisture is the most impor- itant source of supply for plants. The rate that capillarity will act deter- mines the power of the soil to obtain water from the sub...soil, and this in large measure determines the value of the soil. To show capillarity pro- ceed as directed below: Apparatus. Four percolation bottles, a pan about two inches deep and twelve inches long (if this is not to be had. small pans may be used), per- colation rack, four kinds of soil, cheese-cloth and string. C- Procedure. Take four percolation bottles and cover the mouth of each ' with cheese-cloth or plug them with cotton. Fill each with a different kind of soil. Clay, sand, loam, and humus are good ones to use.
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