In the article by Dr. W. M. Bendien and Dr. S. van Creveld, "Investigations on Hemophilia," in the October issue (Am. J. Dis. Child. 54:713, 1937), the percentages in the following lines are ten times too great: page 717, lines 20, 35 and 42; page 724, lines 21, 22, 23, 25 and 26, and page 725, line 8. For instance, in line 35, page 717, "3 or 4 per cent" should read "0.3 or 0.4 per cent."
Furthermore, in the summary, on page 725, line 11 should follow line 5 directly.