. A laboratory manual and text-book of embryology. Embryology. Yolk entoderm Blastopore Ectoderm. ' Completion plate' Prolentoderm Yolk entoderm Blastopore Peristomal mesoderm ' Completion plate ". 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 Prentiss, Charles William, 1874-1915. Philadelphia, London, W. B. Saunders

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectembryology, bookyear1