“Single Value” Soil Properties. A Study of the Significance of Certain Soil Constants. III. Note on the Technique of the Keen-Raczkowski Box Experiment (With Three Text-figures.)

Abstract

A modified technique for the Keen-Raczkowski box experiment is described; it is believed that this new method is as accurate as, and is more convenient than, the one employed earlier.The results obtained for pore space by the new method are very nearly the same as those obtained by the old method. The old and new results obtained for water retention and swelling are not the same, but are related to one another by simple linear expressions, and correlations with other soil properties deduced from the old data are applicable also to the new.