. A contribution to the morphology and biology of insect galls. Galls (Botany). â '}!r'f^<'''^^:\ v^^:^^ â '«.-. â¢-7V^ ?^t^!^:^*?^fesp^. ^«»-- '". 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 Cosens, A. (Absalom), d. 1938; University of Toronto. Theses (Ph. D. ). [Toronto : University Press]

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgallsbo, bookyear1912