. The Canadian field-naturalist. Natural history. The Ottawa Naturalist Vol. XXVIII Plate CERAMOGRAPTUS RUEDEMANNI, HUDSON. Left figure in each half of stereogram x 20 dia. and from a motmting un- der gum,—right figure an enlargement from same negatives to 60 dia. The plate numbers are those of the original 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 Ottawa Field-Naturalists' Club. Ottawa

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Keywords: ., bookauthorottawa, bookpublisherottawa, booksubjectnaturalhistory