31. Manual of cultivated trees and shrubs hardy in North America: exclusive of the subtropical and warmer temperate regions Creator: Rehder, Alfred, 1863-1949. Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1927 Format: Book
32. Cotton: history, species, varieties, morphology, breeding, culture, diseases, marketing, and uses Creator: Brown, Harry Bates, 1876- Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill Book Company, Inc., Publication Place: New York [etc.] : Date: 1927 Format: Book
33. The selection, breeding and culture of sugar beet seeds in the Soviet union: "Sakharotrest" (The United Sugar Industry of the Soviet Union) Creator: Ukraine. Sortovodno-semennoe upravlenie sakharotresta. Collection: Core Historical Literature of Agriculture Publisher: Amtorg Trading Corporation, Publication Place: New York City : Date: 1927 Format: Book
34. Teaching farm shop work and farm mechanics Creator: Schmidt, Gustavus Adolphus, 1880- Collection: Core Historical Literature of Agriculture Publisher: The Century Co., Publication Place: London : Date: 1927 Format: Book
35. The Bureau of Plant Industry: its history, activities and organization Creator: Powell, Fred Wilbur, 1881-1943. Collection: Core Historical Literature of Agriculture Publisher: The Johns Hopkins Press, Publication Place: Baltimore, Md. : Date: 1927 Format: Book
36. 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
37. The utilization of carbohydrates by honeybees Creator: Phillips, Everett Franklin, 1878-1951. Collection: Core Historical Literature of Agriculture Hive and the Honeybee Location: Albert R. Mann Library Publisher: Cornell University, Mann Library Publication Place: Ithaca, New York Date: 1927 Format: Book
38. Variation and correlation in the appendages of the honeybee Creator: Phillips, Everett Franklin, 1878-1951. Collection: Core Historical Literature of Agriculture Hive and the Honeybee Location: Albert R. Mann Library Publisher: Cornell University, Mann Library Publication Place: Ithaca, New York Date: 1927 Format: Book
39. Root development of vegetable crops Creator: Weaver, John E. 1884-1966. Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill Book Company, Inc., Publication Place: New York : Date: 1927 Format: Book
40. Fertilisers and soil improvers: description, application, and comparative value Creator: Gardner, William Collection: Core Historical Literature of Agriculture Publisher: C. Lockwood and Son, Publication Place: London : Date: 1927 Format: Book