. Text-book of embryology. Embryology. t'iG. 197.—Stages in the development of Polypterus. (All except A after drawings by Budgett.) A, stage 12 ; B, 28; C, 27; D, 31; B, 33 ; F, 36 ; G, larva 30 mm. in length, a, anus ; , cement organ ; E, eye; , external gill; op, operculum; , pectoral tin; y, yolk. (A-E x 11; F x 8.). 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 MacBride, E. W. (Ernest William), 1866-1940; Ke

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. Text-book of embryology. Embryology. t'iG. 197.—Stages in the development of Polypterus. (All except A after drawings by Budgett.) A, stage 12 ; B, 28; C, 27; D, 31; B, 33 ; F, 36 ; G, larva 30 mm. in length, a, anus ; , cement organ ; E, eye; , external gill; op, operculum; , pectoral tin; y, yolk. (A-E x 11; F x 8.). 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 MacBride, E. W. (Ernest William), 1866-1940; Kerr, John Graham, 1869-; Heape, Walter, 1855-1929. London : Macmillan

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Keywords: ., bookcentury1900, bookdecade1910, bookpubli, booksubjectembryology