IN the third quarter of 1939, 161,201 live births were registered, or 3,119 more than the number recorded in the corresponding quarter of 1938. Of the total 6,458 were illegitimate, or 13 less than in the third quarter of 1938. The deaths numbered 103,170, and were 17,263 less than in the preceding quarter, but 568 more than in the third quarter of 1938. The mortality of infants under one year of age was equal to 39 per thousand registered live births. This rate is 8 per thousand below the average of the ten preceding third quarters and is the lowest quarterly rate ever recorded. The number of persons married in the third quarter of 1939 was 304,716, an increase of 72,084 on the number in the corresponding quarter of 1938. This number corresponds to an annual rate of 29-3 per thousand of the estimated mid-year population for 1938, and is the highest rate yet recorded.