On the basis of 35,188 obstetrical cases, Johns Hopkins' Dr. Nicholson Joseph Eastman concluded that spacing babies widely is no advantage to the babies or their mothers (TIME, May 22, 1944). His findings have now been amended somewhat by a man who has studied more figures—7,151,631 births.
Says the Public Health Service's top statistician, Dr. Jacob Yerushalmy: babies spaced at "moderate intervals" have the best chance of being born alive. Dr. Yerushalmy did not specify what a "moderate interval" is. The best time to have a second child, said the doctor, is at 20 to 24, and the best time to have...