AGE OF HUMAN EMBRYOS 403 



Watt's case 



(Dr. Watt, Toronto.) 



Twin embryos, GL 2.75 and 3.55 mm. 



Mother, a German Jewess, 30 years old, robust and healthy, four 

 children and this one abortion. Last period, December 3 to 6, 1907; 

 first copulation December 20. Slight flow January 3, with similar 

 flow on January 11, 12 and 13, abortion following on January 14. 

 Menstruation age, 42 days. Copulation age, 25 days or less. 



No. 1182 b 



(Dr. C. E. Caswell, Wichita, Kansas.) 



Woman aged 27, four living children and one abortion. Husband has 

 syphilis and so has one child. Mother seems to have escaped. Last 

 period, March 25 to April 4. Abortion, May 10. Mother is sure that 

 conception took place April 14. Menstrual age 46 days. Copulation 

 age, 26 days. Doubtful case. 



No. 470 



(Dr. H. C. Ellis, Elkton, Md.) 



Embryo, CR 4 mm. Chorion, 20 x 13 mm. 



Mother, 24 years old, two healthy children. Abortion during an 

 attack of mumps with very high fever. Last period October 5, 1910, 

 and copulation about October 15. Abortion November 9. Menstrual 

 age, 35 days; copulation age not over 25 days. 



No. 588 



(Dr. G. L. Wilkins, Baltimore.) 



Embryo, CR 4 mm. 



Last period January 26 to February 3. Had no intercourse with 

 husband for several weeks prior to this and only three or four days after 

 period but not later. Abortion March 16, 1912. She has had two 

 healthy children, 14 and 20 years old respectively, and not less than 

 eleven abortions. Dr. Wilkins believes that all the abortions were 

 induced. Menstrual age, 50 days. Copulation age, 38 or 39 days. 



No 1507 



(Dr. C. B. Ingraham, Denver, Colorado.) 



Macerated embryo, GL 4 mm. 



A Jewess who last menstruated May 7 to 11; abortion June 22. 



Woman had opportunity to become pregnant shortly after this period 



or again just before the next. Menstrual age, 46 days; copulation age, 



40 days or 17 days. Record not satisfactory, especially since specimen 



s also pathological. 



