PRINCETON UNIVERSITY OBSERVATORY 14 Prospect Avenue Princeton, New Jersey February 26, 1954 Dr. Immanuel Velikovsky 4 Hartley Avenue Princeton, New Jersey Dear Dr. Velikovsky: In reply to your letter of February 23 I am writing to say that there is no established difference in the length of the equatorial and polar diameters of the sun. Some observers have reported a small difference but I believe that no such difference has been firmly established. Very sincerely yours, Lyman Spitzer, Jr.