61. Number 11 - Trees: Home nature-study course Collection: Core Historical Literature of Agriculture Publisher: s.n. Publication Place: Ithaca, N.Y. Date: 1901 Format: Issue
62. Number 12 - Waiting for Spring: Home nature-study course Collection: Core Historical Literature of Agriculture Publisher: s.n. Publication Place: Ithaca, N.Y. Date: 1901 Format: Issue
63. Number 15 - The Butterfly: Home nature-study course Collection: Core Historical Literature of Agriculture Publisher: s.n. Publication Place: Ithaca, N.Y. Date: 1901 Format: Issue
64. Number 18 - The Potato: Home nature-study course Collection: Core Historical Literature of Agriculture Publisher: s.n. Publication Place: Ithaca, N.Y. Date: 1901 Format: Issue
65. Index , Edition First Reprint - Index to North American Mycology: Journal of mycology Collection: Core Historical Literature of Agriculture Publisher: s.n Publication Place: Columbus, Ohio Date: 1901 Format: Issue
66. Volume 4, Index : Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1901 Format: Issue
67. Volume 4, Number 1: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1901 Format: Issue
68. Volume 4, Number 2: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1901 Format: Issue
69. Volume 4, Number 3: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1901 Format: Issue
70. Volume 4, Number 4: Plant world Collection: Core Historical Literature of Agriculture Publisher: Plant World Association Publication Place: Baltimore, Md. Date: 1901 Format: Issue
