Paper - Information regarding the time of human ovulation derived from a study of 3 unfertilized and 11 fertilized ova

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Rock J. and Hertig AT. Information regarding the time of human ovulation derived from a study of 3 unfertilized and 11 fertilized ova. (1944) Amer. J. Obstet. Gynecol., 47: 343-356.

Online Editor 
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This historic 1941 paper describes early human development in week 2. Draft only.


See also: Rock J. and Hertig AT. Two human ova of the previous stage, having an ovulation age of about eleven and twelve days respectively. (1941) Contrib. Embryol., Carnegie Inst. Wash. Publ.525, 29: 127-156.

Rock J. and Hertig AT. Some aspects of early human development. (1942) Amer. f. Obstet. Gynecol, 44: 973-983.

Hertig AT. and Rock J. Two human ova of the pre-villous stage, having a developmental age of about seven and nine days respectively. (1945) Contrib. Embryol., Carnegie Inst. Wash. Publ. 557, 31: 65-84.

Hertig AT. and Rock J. On a normal human ovum not over 7.5 days of age. (1945) Anat. Rec, 91: 281.

Hertig AT. and Rock J. On a normal ovum of approximately 9 to 10 days of age. (1945) Anat. Rec, 91: 281.


Links: Carnegie stage 5 | Week 2

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Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms and interpretations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Some Aspects of Early Human Development

John Charles Rock
John Charles Rock (1890-1984)
Arthur T Hertig
Arthur Tremain Hertig (1904-1990)

John Rock and Arthur T . Hertig


Free Hospital for Women, Brookline, Mass., Departments of Pathology, Obstetrics and Gynecology, Harvard Medical School and Department of Embryology, Carnegie Institution of Washington.



Cite this page: Hill, M.A. (2019, September 17) Embryology Paper - Information regarding the time of human ovulation derived from a study of 3 unfertilized and 11 fertilized ova. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Information_regarding_the_time_of_human_ovulation_derived_from_a_study_of_3_unfertilized_and_11_fertilized_ova

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