. Bulletin biologique de la France et de la Belgique. Biology; Natural history. BuUetiB sûieûtiaqae, Tome ZXXI7 '^ X Ãîi. o7 â ^;® L-^' *9 iuu£ïiSiMi^V^ ⢠, ⢠«î «J. ' n'./t? -â¢-^ ir^-^;^<^. 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 Université de Paris. Laboratoire d'evolution des êtres organisés. Montreuil [etc. ] Gauther-Villars [etc. ]

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901