These articles and papers deal with properties of soils; for the most part examining more than one type of soil, but including diatomaceous soils. The link will take you either to the abstract or the full-text document, and a short description from the abstract can be viewed by hovering over the link. The date is listed after the abstract. If the article is not listed as full-text or available from the library, it can be obtained by the library through interlibrary loan.