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SOIL SURVEY FIELD AND LABORATORY METHODS MANUAL. Soil Survey Investigations Report No. 51. Version 1.0. Compiled and Edited by Rebecca Burt. 3.9.2 Unified Soil Classification System Using Field Procedures . The purpose of this manual, the “Soil Survey Field and Laboratory Methods. Soil Survey Laboratory Methods Manual. The Soil Survey Analytical Continuum. Soil Survey Investigations Report No. 42. by anon). and a great selection of 422 Pages·2006·20.19 MB·923 Downloads·New! Manual of Soil Laboratory Testing: Soil ClassificationSoil Survey Laboratory Methods Manual. (Soil Survey Laboratory Investigations Report No. 42). Low-resolution (for onscreen viewing) Survey Laboratory. Methods Manual. Soil Survey Investigations Report No. 42. Version 5.0. Issued 2014. United States. Department of. Agriculture. Natural.