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CROMMELIN, A.C.D. "The Total Eclipse of September 21" and with Herbert Dingle, "The Deflection of Light in a Gravitational Field", both in the same issue of "Nature", London, Macmillan, vol 110 no. 2759, the issue of 16 September 1922. Crommelin appears on pg 389 and the Dingle on pp 389-390 in the issue of pp 369-400. The issue is cleanly and neatly extracted from a larger bound volume, and is offered with the original wrappers. VG copy. Provenance: Smithsonian Institution Astrophysical Laboratory, with their rubber stamp on front cover. VG copy. [++] The Crommelin is a statement of the upcoming eclipse (the next week), being a description of the expedition and the equipment, with a scant mention of the theory of relativity. ("They are understood to be attempting the Einstein problemalso makes the Einstein problem the chief item of the programme." The following article by Dingle is far more concerned with the issue of proof and relativity, written by an ardent anti-Einsteinian. (In discussing the 1919 results Dingle states: ".it will be remembered that the original test, on May 29 1919, was considered by observers and a large number of others to five conclusive evidence in favour of the relativity theory: it was this result in fact that directed general attention to the theory, and made Einstein, for a brief spell, a noteworthy figure in the public esteem. The interpretation of the observations, however has been subjected to various criticisms", and then reviews the "serious evidence". Dingle points to the upcoming eclipse of the 21 September to be the decisive element in the proof (or lack thereof) of relativity he never did accept Einstein, and fought his fight through his long life well into the 1970s. ["A total solar eclipse in Australia in 1922 provided scientists with an opportunity to confirm the experimental 'proof' of Einstein's general theory of relativity that had been provided by Eddington's observations in 1919. Independent expeditions mounted by the SA and NSW observatories both aimed to test Einstein's prediction that light passing near massive bodies such as the sun would appear to be bent."--Physics in Australia to 1945 [++]("The 1919 total eclipse observation was a definitive demonstration of the bending of light by the Sun, experimentally verifying the theory of relativity, with astronomer Andrew Crommelin directing efforts in Sobral, Brazil, and Arthur Eddington leading the joint expedition from the island of Princípe. Crommelin had much better conditions in Brazil. Despite technical issues with equipment that left many plates badly blurred, his measurements were decisive, and were noticeably closer to the Einstein prediction than to the Newtonian. The results were announced collectively in November [6th] that year, at a special joint meeting of the Royal Society and Royal Astronomical Society in London. It made front-page news around the globe." -- See: Einstein's War: How Relativity Triumphed Amid the Vicious Nationalism of World War I Matthew Stanley Dutton (2019)).
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