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Astronomische Nachrichten, Band 238, N5699, pp. 165-170 (Jan 1930).

Forum, V71, N6, pp. 705-716 (June 1924). A Professor of Celestial Mechanics maintains thay Einstein's theory of relativity has not been proved, unless we accept on faith the special pleadings and assumptions of his followers. He calls attention to the wide divergence between stellar positions predicted by Einstein and the actual positions observed at the time of eclipses, and he argues that Newton's conclusions can be equally well vindicated if Newtonians permit themselves similar liberties in explaining away embarrassing facts.

Forum, V72, N2, pp. 273-274 (Aug 1924). By way of rebuttal to Professor Henderson's article in the July issue, Professor Poor sends us the following letter.