. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. H Fig. 408. — Cleavage of froe'.s ess, A-C ; H, beginning (if gastrulation ; I, the white plug. From Morgan, "Development of the Frog's ;. 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 Davenport, Charles Benedict, 1866-1944; Davenport, Gertrude Anna Crotty, 1866- joint author. New York, Macmillan

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1911