41. Volume 17, Number 43: American bee journal Collection: Core Historical Literature of Agriculture Hive and the Honeybee Publisher: Dadant & Sons Publication Place: Hamilton, Ill., etc. Date: 1881 Format: Issue
42. The age of mammals in Europe, Asia and North America Creator: Osborn, Henry Fairfield, 1857-1935. Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York : Date: 1910 Format: Book
43. Forage plants and their culture Creator: Piper, Charles V. 1867-1926. Collection: Core Historical Literature of Agriculture Publisher: The Macmillan Company, Publication Place: New York : Date: 1914 Format: Book
44. America self-contained Creator: Crowther, Samuel, 1880-1947. Collection: Core Historical Literature of Agriculture Publisher: Doubleday, Doran & company, inc., Publication Place: Garden City, N.Y. : Date: 1933 Format: Book
45. Our plundered planet Creator: Osborn, Fairfield, 1887-1969. Collection: Core Historical Literature of Agriculture Publisher: Little, Brown, Publication Place: Boston : Date: 1948 Format: Book
46. Volume 2, Number 1: American bee journal Collection: Core Historical Literature of Agriculture Hive and the Honeybee Publisher: Dadant & Sons Publication Place: Hamilton, Ill., etc. Date: 1866 Format: Issue
47. The book of useful plants Creator: Rogers, Julia Ellen, b. 1866. Collection: Core Historical Literature of Agriculture Publisher: Doubleday, Page & Co., Publication Place: Garden City, N.Y. : Date: 1913 Format: Book
48. Volume 18, Number 32: American bee journal Collection: Core Historical Literature of Agriculture Hive and the Honeybee Publisher: Dadant & Sons Publication Place: Hamilton, Ill., etc. Date: 1882 Format: Issue
49. The ox and its kindred Creator: Lydekker, Richard, 1849-1915. Collection: Core Historical Literature of Agriculture Publisher: Methuen, Publication Place: London : Date: 1912 Format: Book
50. Edible wild plants of eastern North America Creator: Fernald, Merritt Lyndon, 1873-1950. Collection: Core Historical Literature of Agriculture Publisher: Idlewild Press, Publication Place: Cornwall-on-Hudson, N.Y. : Date: 1943 Format: Book