61. The colloid chemistry of the silicate minerals Creator: Marshall, Charles Edmund, 1903- Collection: Core Historical Literature of Agriculture Publisher: Academic Press, Publication Place: New York : Date: 1949 Format: Book
62. Hydrology handbook: adopted Jan. 17, 1949. Creator: American Society of Civil Engineers. Committee on Hydrology. Collection: Core Historical Literature of Agriculture Publisher: [s.n.], Publication Place: New York : Date: 1949 Format: Book
63. Pigs: their breeding, feeding and management Creator: Fishwick, Victor Charles. Collection: Core Historical Literature of Agriculture Publisher: Crosby Lockwood & Son, Publication Place: London : Date: 1949 Format: Book
64. Principles of field crop production Creator: Martin, John H. 1893- Collection: Core Historical Literature of Agriculture Publisher: Macmillan Co., Publication Place: New York : Date: 1949 Format: Book
65. The pruning of apples and pears by renewal methods Creator: Thompson, Clifford Ronald, 1909- Collection: Core Historical Literature of Agriculture Publisher: Faber and Faber Publication Place: London, Date: 1949 Format: Book
66. The ABC of soils Creator: Joffe, Jacob Samuel, 1887- Collection: Core Historical Literature of Agriculture Publisher: Pedology Publications, Publication Place: New Brunswick, N.J. : Date: 1949 Format: Book
67. The organic method on the farm Creator: Rodale, J. I. 1898-1971 Collection: Core Historical Literature of Agriculture Publisher: The Organic Farmer, Publication Place: Emmaus, Pa. : Date: 1949 Format: Book
68. The story of tobacco in America Creator: Robert, Joseph C. Collection: Core Historical Literature of Agriculture Publisher: Knopf, Publication Place: New York : Date: 1949 Format: Book
69. Farm work simplification Creator: Vaughan, Lawrence Moore, 1898- Collection: Core Historical Literature of Agriculture Publisher: J. Wiley, Publication Place: New York : Date: 1949 Format: Book
70. Crisscross trails: narrative of a soil surveyor Creator: Lapham, Macy Harvey, 1874- Collection: Core Historical Literature of Agriculture Publisher: W. E. Berg, Publication Place: Berkeley, Calif. : Date: 1949 Format: Book