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File:PSM V84 D528 Facts and factors of development fig1.jpg

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Fig. 1. A nearly ripe human ovum in the living condition. The ovum is surrounded by a series of follicle cells (FC) inside of which is the clear membrane (Memb.) and within this is the ovum proper containing yolk granules (Y) and a nucleus (N) embedded in a clear mass of protoplasm. magnified 500 diameters (x 500). From O. Hertwig. B, two human spermatozoa drawn to about the same scale of magnification. (After G. Retzius)

Date
Source Edwin Grant Conklin: Facts and factors of development. The Popular science monthly, Volume 84, p524. New York, Popular Science Pub. Co., June 1914. Online: archive.org.
Author Edwing Grant Conklin after O. Hertwig and G. Retzius
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image extraction process This file has been extracted from another file: Popular Science Monthly Volume 84.djvu
original file

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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

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Date/TimeThumbnailDimensionsUserComment
current15:46, 11 February 2017Thumbnail for version as of 15:46, 11 February 20171,806 × 1,466 (443 KB)Opencooper (talk | contribs)clean
15:37, 11 February 2017Thumbnail for version as of 15:37, 11 February 20171,806 × 1,466 (447 KB)Opencooper (talk | contribs)darken and sharpen
15:31, 11 February 2017Thumbnail for version as of 15:31, 11 February 20171,806 × 1,466 (378 KB)Opencooper (talk | contribs)without Internet Archive processing and levelled
02:50, 19 March 2011Thumbnail for version as of 02:50, 19 March 20111,720 × 1,449 (426 KB)Martin H. (talk | contribs)
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