41. Soils and fertilizers Creator: Lyon, T. L. 1869-1938 Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1917 Format: Book
42. Soil physics and management Creator: Mosier, Jeremiah George, 1862-1922. Collection: Core Historical Literature of Agriculture Publisher: J. B. Lippincott Company, Publication Place: London : Date: 1917 Format: Book
43. Farm fertility Creator: Haskell, Sidney Burritt, 1881- Collection: Core Historical Literature of Agriculture Publisher: Harper & Brothers, Publication Place: London : Date: 1923 Format: Book
44. Soil and civilization: a modern concept of the soil and the historical development of agriculture. Creator: Whitney, Milton, 1860-1927. Collection: Core Historical Literature of Agriculture Publisher: D. Van Nostrand Company, Publication Place: New York : Date: 1925 Format: Book
45. Fertility and crop production: a handbook for the student and farmer Creator: Hinkle, Samuel Frank, 1889- Collection: Core Historical Literature of Agriculture Publisher: S. F. Hinkle, Publication Place: Sandusky, Ohio : Date: 1925 Format: Book
46. Physiological features of roots: with especial reference to the relation of roots to aeration of the soil Creator: Cannon, William Austin, 1870- Collection: Core Historical Literature of Agriculture Publisher: The Carnegie Institution of Washington, Publication Place: Washington : Date: 1925 Format: Book
47. Plant nutrition and crop production Creator: Russell, Edward J. (as Sir,) 1872-1965. Collection: Core Historical Literature of Agriculture Publisher: University of California Press, Publication Place: Berkeley, Calif. : Date: 1926 Format: Book
48. The farm Creator: Davenport, E. 1856-1941. Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York : Date: 1927 Format: Book
49. Farm soils: their management and fertilization. Creator: Worthen, Edmund Louis, 1882- Collection: Core Historical Literature of Agriculture Publisher: Wiley, Publication Place: New York : Date: 1927 Format: Book
50. An introduction to the scientific study of the soil Creator: Comber, Norman Mederson, 1888- Collection: Core Historical Literature of Agriculture Publisher: Longmans, Green & Co., Publication Place: New York : Date: 1927 Format: Book