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Published online by Cambridge University Press: 15 May 2009
Since the birth-rate is persistently diminishing, interest in the laws by which nativity is governed is steadily increasing. This interest became still more intense when, on account of the war, a large number of human lives were destroyed, causing a decrease of population in many countries. Those who fell in this war happened to be men in the prime of life, a fact which manifested itself after the war in a decreased number of births, apart from the temporary increase of births in consequence of the return of the mobilised men to their native towns.
1 Editorial Note. Whilst going through the press, the author's proof having been passed, we learn that this paper has recently appeared in German in the Archiv für Hygiene, xcv. 363–381. If the author had informed us of his intentions we should have withheld the paper in the customary manner.