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A monograph of the Trochilid or family of hummingbirds Plate . ul'f inti Hi ' CTAFOMYIA FRAN LE ffuMmamdd Wa on In Plate Illustration biodiversitylibrary org title Gould John Hullmandel Walton Richter Henry Constantine Walter Cohn NameFound Cyanomyia francis Biodiversity Heritage Library monograph of the Trochilid