Proving Einstein.- Crommelin (Andrew Claude de la Cherois) Results of the total solar eclipse of May 29 and the Relativity Theory, in Nature, Vol. CIV, September, 1919 to February, 1920 (as with all articles mentioned here), pp.280-281, 13th November, 1919; Cunningham (E.) Einstein's Relativity Theory of Gravitation. 3 parts, pp.354-356, 374-376 & 394-395, 4th, 11th & 18th December, 1919; Eddington (Arthur Stanley) The Deflection of light during a solar eclipse, p.372, 11th December, 1919; Crommelin (Andrew Claude de la Cherois) The Theory of Relativity, pp.631-632, 12th February, 1920; G. (W.) Euclid, Newton and Einstein, pp.627-630, 12th February, 1920, couple of small library ink stamps to front free endpapers, lightly browned, contemporary half calf over cloth, red morocco label to spine, rubbed and marked, 4to
⁂ The first publication of the results of solar eclipse expeditions by Crommelin (Sobral in Brazil) and Eddington (Island of Principe, off the coast of West Africa), which were crucial in providing confirmation of the General Theory of Relativity, proposed by Einstein in 1916.
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