Note 1 — MENSTRUATION.
Reading edition
The following table exhibits the ages of three hundred and twenty-six females, at which they began to menstruate. It is furnished me by Mr. Robertson, in the North of England Medical and Surgical Journal.
In their 11th year, 6
12th „ 12
13th „ 31
14th „ 60
15th „ 72
16th „ 54
17th „ 50
18th „ 19
19th „ 18
20th „ 4
To this list may be added the case related by Madame Boivin, in her account of a new case of abortion. The subject of this case commenced to menstruate at seven years of age, and did so regularly after her tenth year.