Ovariotomy as a Prophylaxis and Cure for Insanity.

To the Editor: —I wrote an article on this subject in March of this year. I further report concerning the same case. Miss Ada N., age 28, had been insane for 13 years, when on February 4, 1891, I made my first ovariotomy upon her, with the result as shown in my article of March, 1891. The young lady continues to improve mentally and physically. Hers was a case of hysterical insanity, although the case had been for 13 years pronounced a case of dementia. As stated in my first article she had had scarlet fever at 13 years of age; just at the time when the ovaria were developing into active maturity, and were consequently checked and diseased. She complained of ovarian pain for years, increased at each menstrual epoch. Now here is one of those cases wherein the sympathetic nervous system was at fault and not, as was