. A contribution to the history of the fresh-water algÅ of North America. Botany; Algae. 5^ T ^ipV O C 3c B :*m *f â 'C« ll3 ⢠.w# ^ ^^ ^ s* 4"^^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wood, H. C. (Horatio C. ), 1841-1920. [Washington, Smithsonian institution

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1872