21. First principles of soil fertility Creator: Vivian, Alfred, 1867- Collection: Core Historical Literature of Agriculture Publisher: Orange Judd Company, Publication Place: New York : Date: 1909 Format: Book
22. The principles of soil management Creator: Lyon, T. L. 1869-1938 Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1909 Format: Book
23. Soils and manures Creator: Murray, J. Alan b. 1867. Collection: Core Historical Literature of Agriculture Publisher: Constable & Co., Publication Place: London : Date: 1910 Format: Book
24. Soil fertility and permanent agriculture Creator: Hopkins, Cyril G. 1866-1919. Collection: Core Historical Literature of Agriculture Publisher: Ginn and Company, Publication Place: New York : Date: 1910 Format: Book
25. The soil solution: the nutrient medium for plant growth Creator: Cameron, Frank K. 1869-1958. Collection: Core Historical Literature of Agriculture Publisher: Chemical Publishing Co., Publication Place: Easton, Pa. : Date: 1911 Format: Book
26. The Soil of the farm Creator: Lawes, J. B. 1814-1900. Collection: Core Historical Literature of Agriculture Publisher: Orange Judd, Publication Place: New York : Date: 1912 Format: Book
27. Crops and methods for soil improvement Creator: Agee, Alva, 1858- Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York : Date: 1912 Format: Book
28. Soil conditions and plant growth Creator: Russell, Edward J. (as Sir,) 1872-1965. Collection: Core Historical Literature of Agriculture Publisher: Longmans, Green, Publication Place: New York : Date: 1912 Format: Book
29. Soils and soil fertility Creator: Whitson, Andrew Robeson 1870- Collection: Core Historical Literature of Agriculture Publisher: Webb Publishing Co., Publication Place: St. Paul, Minn. : Date: 1912 Format: Book
30. The feeding of crops and stock: an introduction to the science of the nutrition of plants and animals Creator: Hall, Daniel, (as Sir,) 1864-1942 Collection: Core Historical Literature of Agriculture Publisher: J. Murray, Publication Place: London : Date: 1912 Format: Book