File:PSM V84 D528 Facts and factors of development fig1.jpg
Original file (1,806 × 1,466 pixels, file size: 443 KB, MIME type: image/jpeg)
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)
|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|
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, 1924.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Click on a date/time to view the file as it appeared at that time.
|current||15:46, 11 February 2017||1,806 × 1,466 (443 KB)||Opencooper||clean|
|15:37, 11 February 2017||1,806 × 1,466 (447 KB)||Opencooper||darken and sharpen|
|15:31, 11 February 2017||1,806 × 1,466 (378 KB)||Opencooper||without Internet Archive processing and levelled|
|02:50, 19 March 2011||1,720 × 1,449 (426 KB)||Martin H.|
- You cannot overwrite this file.
File usage on Commons
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikiquote.org
- Usage on en.wikisource.org