Reply to Dr. Blumenstock's Remarks.

The article presents a reply to David I. Blumenstock for his comments on the author's article, "Regional Differences in the World Atmospheric Circulation," which was published in the March 1953, issue of "Annals of the Association of American Geographers." According to him Blumenstock's remarks correctly note some of the weak points of the paper. They deserve attention and discussion. For example, some of the percentage figures which are indicative rather than conclusive, were obtained through counting the air mass frequencies as shown on the Northern Hemisphere Surface Maps issued by the U.S. Weather Bureau for the years 1919, 20, 21, 24, 25, 35. 36, 37, 38, and 1939.