. Diatomaceæ of North America, illustrated with twenty-three hundred figures from the author's drawings on one hundred and twelve plates. Fragilariaceae. Plate 16 19 HP :.-. •.•.•.•.•:. oo'°°; 3 < 0 O^o O ° 00 0 °o9?° ,;., o 0 s 20 be« ®<3a r® 3 so© e ) O (5 O O'] »ooa ;-5» i? o cM P© (5 0. 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 Wolle, Francis, 1817-1893. Bethlehem, Pa. , The Comenius Press

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectfragila, bookyear1890