21. Hercules dynamite on the farm: ditch blasting. Creator: Hercules Powder Company. Collection: Core Historical Literature of Agriculture Publisher: Hercules Powder Company, Incorporated, Publication Place: Wilmington, Delaware : Date: 1933 Format: Book
22. Hercules dynamite on the farm: tree planting, soil blasting, tree rejuvenation, other farm uses. Creator: Hercules Powder Company. Collection: Core Historical Literature of Agriculture Publisher: Hercules Powder Company, Incorporated, Publication Place: Wilmington, Delaware : Date: 1933 Format: Book
23. History of agriculture in the southern United States to 1860: Volume I. Creator: Gray, L. C. Collection: Core Historical Literature of Agriculture Publisher: Carnegie Institution of Washington, Publication Place: Washington : Date: 1933 Format: Book
24. History of agriculture in the southern United States to 1860: Volume II. Creator: Gray, L. C. Collection: Core Historical Literature of Agriculture Publisher: Carnegie Institution of Washington, Publication Place: Washington : Date: 1933 Format: Book
25. How plants get their names, Creator: Bailey, L. H. 1858-1954. Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York, Date: 1933 Format: Book
26. Internal combustion engines, theory analysis and design: a treatise on Internal-combustion engines for engineers and students in engineering Creator: Streeter, Robert Leroy, 1880-1932. Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill book co., inc., Publication Place: London : Date: 1933 Format: Book
27. International critical tables of numerical data, physics, chemistry and technology: Index Vols. I-VII (1930) Creator: Washburn, Edward W. 1881-1934. Collection: Core Historical Literature of Agriculture Publisher: Published for the National Research Council by McGraw-Hill, Publication Place: New York : Date: 1933 Format: Book
28. International critical tables of numerical data, physics, chemistry and technology: Index Vols. I-VII (1933) Creator: Washburn, Edward W. 1881-1934. Collection: Core Historical Literature of Agriculture Publisher: Published for the National Research Council by McGraw-Hill, Publication Place: New York : Date: 1933 Format: Book
29. International critical tables of numerical data, physics, chemistry and technology: Volume I. (1926) Creator: Washburn, Edward W. 1881-1934. Collection: Core Historical Literature of Agriculture Publisher: Published for the National Research Council by McGraw-Hill, Publication Place: New York : Date: 1933 Format: Book
30. International critical tables of numerical data, physics, chemistry and technology: Volume II. (1927) Creator: Washburn, Edward W. 1881-1934. Collection: Core Historical Literature of Agriculture Publisher: Published for the National Research Council by McGraw-Hill, Publication Place: New York : Date: 1933 Format: Book
