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Botany in Essex County: a paper read before the Essex Institute, at Topsfield, June 18, 1884, the fiftieth anniversary of the formation of the Essex County Natural History Society
Botany in Essex County: a paper read before the Essex Institute, at Topsfield, June 18, 1884, the fiftieth anniversary of the formation of the Essex County Natural History Society
Progress of botany in Essex County during the last half century, especially as influenced by the Essex County Natural History Society and the Essex Institute, 1834-1884