%eadnotat; ]> Unio heros Say, a workbook, 1825? Phillips Academy of Natural Sciences of Philadelphia Text converted and initial EAD tagging provided by Apex Data Services, March 2001. ENG Unio heros Say, a workbook, 1825? Phillips Academy of Natural Sciences of Philadelphia 1963 Descriptive Summary Collection 213 Archives of the Academy of Natural Sciences

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UNIO HEROS Say, a workbook, 1825? 1 item. Collection 213

The binder's title, “Extracts of Natural Science,” scarcely indicates the subject of this workbook. Text refers to Unio heros Say with other conchological notes. It appears to be an accumulation of original descriptions of mollusks, copied from various published sources. Unsigned, p. 11-152 tentatively dated between 1819-29, but the species in the title was described in 1825. Provenance not known.