. The cell; outlines of general anatomy and physiology. Cells; Anatomy; Physiology; Cells; Anatomy; Physiology. Fis. 160.—A, B, C Sections of ova o£ Asterias , after Fol. The spermatozoa have already penetrated the gelatinous envelopes of the ovum. In A, a prominence is just beginning to rise up to meet the most advanced spermatozoon. In B, the promin- ence and spermatozoon have' met. In C, the spermatozoon has penetrated the egg which has formed a yolk-membrane with a crater-like Please note that these images are extracted from scanned page images that may have been digit

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. The cell; outlines of general anatomy and physiology. Cells; Anatomy; Physiology; Cells; Anatomy; Physiology. Fis. 160.—A, B, C Sections of ova o£ Asterias , after Fol. The spermatozoa have already penetrated the gelatinous envelopes of the ovum. In A, a prominence is just beginning to rise up to meet the most advanced spermatozoon. In B, the promin- ence and spermatozoon have' met. In C, the spermatozoon has penetrated the egg which has formed a yolk-membrane with a crater-like 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 Hertwig, Oscar, 1849-1922; Campbell, M. , tr; Campbell, Henry Johnstone, 1859- ed. London, S. Sonnenschein & Co. ; New York, Macmillan & Co.

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Keywords: ., bookcentury1800, booksubjectanatomy, booksubjectphysiology, booky