Sormani, Giornale di Medicina Militare, 1870.
Throughout Europe, it may be said, marriages tend to take place either in spring or autumn (Oettinger Moralstatistik, p. 181, gives details). That is to say, that there is a tendency for marriages to take place at the season of the great public festivals, during which sexual intercourse was prevalent in more primitive times.
Hill, Nature, July 12, 1888.