Vaschide and Vurpas, Archives de Neurologie, May, 1904.
F. B. Robinson, New York Medical Journal, March 11, 1893.
Féré deals fully with the various morbid results which may follow coitus, L' Instinct Sexuel, Chapter X; id., Pathologie des Emotions, p. 99.
With regard to the relationship of detumescence to the blood-pressure Haig remarks: "I think that as the sexual act produces low and falling blood-pressure, it will of necessity relieve conditions which are due to high and rising blood-pressure, such, for instance, as mental depression and bad temper; and, unless my observation deceives me, we have here a connection between conditions of high blood-pressure, with mental and bodily depression, and the act of masturbation, for this act will relieve those conditions, and will tend to be practiced for this purpose." (A. Haig, Uric Acid, sixth edition, p. 154.)