. A contribution to the morphology and biology of insect galls. Galls (Botany). vrri>t?9iiS'srn: ifwiiwafcii mniiMr^B â »-â â -», 42 41 COSENS ON GALLS ^ELIOIYPF CO. BOSTON. 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