Word: menstrual
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Dates: during 1940-1949
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...average woman, with a menstrual cycle of 28 days, is most fertile on the 11th, 12th and 13th days following the beginning of menstruation. Women with cycles of 24 to 35 days should be most fertile from the 9th to 19th day (60% from the 11th to 13th...
...limitation of sexual intercourse to those days of each monthly cycle in which a woman is unlikely to be fertile. The fertility period of women may vary widely. Attempts to determine it in any individual involve a full year's careful charting of her menstrual periods, daily temperature, other data...
...Post-canoe Aristotle thought the baby was formed entirely of menstrual blood, a notion still held by certain moderns, including the Maoris. Not till the 17th Century did Swammerdam show that in conception it was necessary for the male fluid to make contact with the female, a heresy that outraged certain authorities of his time who argued that fertilization by the male was not necessary; not till the 18th Century were male germ cells discovered; only within living memory has the fusion of male and female germ cells been demonstrated...
...evidence as presented by Dr. Beltz: a laboratory test indicated pregnancy last March 24. The date of Mrs. Hunter's last menstrual period was Feb. 10. Everything proceeded as usual for three months. Then there was "apparent cessation of growth," until at six months Mrs. Hunter felt life for the first time. (Normal time for this: 16th to 18th week.) Fetal heartbeat was first detected in September. (Normal time for this would have been July...
...reported in the American Review of Soviet Medicine last week, the process thus far seems to work in the thyroid and menstrual conditions. But U.S. doctors, who have tried similar exchanges on animals (TIME, Sept. 26, 1938), do not think much of this Russian idea. To be effective, virtually all the blood of the patients involved would have to be exchanged; and even so, the benefit would be temporary at best...