13 books
Report of the Chief of the Bureau of Chemistry and Soils
Report of the Chief of the Bureau of Chemistry and Soils, 1935 (Classic Reprint)
Progress Report of the Regional Research Laboratories: Remarks of Dr. Henry G. Knight, Chief, Bureau of Agricultural Chemistry and Engineering, United States Department of Agriculture, Before the Land Grant College Meeting, Chicago, Illinois, Tuesday, Nov
Agricultural Experiment Station Work
Report of the Chief of the Bureau of Chemistry and Soils, 1937 (Classic Reprint)
Report of the Chief of the Bureau of Agricultural Chemistry and Engineering, 1939 (Classic Reprint)
Report of the Chief of the Bureau of Agricultural Chemistry and Engineering, 1940 (Classic Reprint)
Report of the Chief of the Bureau of Chemistry and Soils, 1934 (Classic Reprint)
Regional Laboratories Progress Report (Classic Reprint)
Research on Present Uses of Cotton and Cottonseed (Classic Reprint)
Report of the Chief of the Bureau of Chemistry and Soils, 1928 (Classic Reprint)
Accomplishments of the Bureau of Agricultural Chemistry and Engineering, U. S. Department of Agriculture
Report of the Chief of the Bureau of Chemistry and Soils (Classic Reprint)