91. Volume 2, Number 9: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1899 Format: Issue
92. Volume 2, Number 10: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1899 Format: Issue
93. Volume 2, Number 11: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1899 Format: Issue
94. Volume 2, Number 12: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1899 Format: Issue
95. Volume 12: Annual report Collection: Core Historical Literature of Agriculture Publisher: Vermont Agricultural Experiment Station Publication Place: Burlington, Vt. Date: 1899 Format: Issue
96. Number 3 - Fertility of the Soil: Cornell reading-course for farmers. Reading-lesson Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1899 Format: Issue
97. Number 3, Supplement - Quiz on Reading-Lesson No. 3: Cornell reading-course for farmers. Reading-lesson Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1899 Format: Issue
98. Number 4 - How the Plant Gets Its Food from the Soil: Cornell reading-course for farmers. Reading-lesson Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1899 Format: Issue
99. Number 4, Supplement - Quiz on Reading-Lesson No. 4: Cornell reading-course for farmers. Reading-lesson Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1899 Format: Issue
100. Number 5 - How the Plant Gets Its Food from the Air: Cornell reading-course for farmers. Reading-lesson Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1899 Format: Issue