An Explanation of the Observed Irregularities in the Motion of Uranus on the Hypothesis of Disturbances Caused by a More Distant Planet; with a determination of the mass, orbit, and position of the disturbing body. Offprint from the Appendix of the Nautical Almanac for the Year 1851.
London: W. Clowes & Sons, 1846.
1st Edition. Soft cover. 8vo - over 7¾ - 9¾" tall. Near Fine. Item #002884
8vo (232 x 146 mm).  4-31  pp. Original printed self-wrappers as issued, stitched, pages partially unopened and uncut. Very little age-toned, faint offsetting on title-page. A clean, crisp and completely unsophisticated copy. ----
Dibner 16; Sparrow 1; Norman 7; Evans 24; DSB I, pp. 53-4; Ley, Watchers, pp. 407-14. EXCEPTIONALLY RARE FIRST SEPARATE EDITION of the work that announced the discovery of Neptune and finally confirmed Newton's theory of gravitation.
Adams began his investigation of Uranus in mid-1843, and in 1845 sent his calculations and observations to the Astronomer Royal, George Biddell Airey, who failed to recognise the importance of the paper. In 1846, Urbain Jean Joseph Le Verrier published his own research and reached the same conclusion, leading to the immediate identification of Neptune by J.G. Galle. Only then was Adams' work published, leading to a bitter dispute over priority (Norman 7).
"In retrospect Adams' many mathematical and astronomical achievements pale in comparison to his analysis of the orbit Uranus and his prediction of the existence and position of Neptune at the age of twenty-four. Much of his later work has been superseded, but as the co-discoverer of Neptune he occupies a special, undiminished place in the history of science." (DSB I, p.54). - Visit our website for additional images and information.
Delivery time up to 10 days. For calculation of the latest delivery date, follow the link: Delivery times
Lieferzeit max. 10 Tage. Zur Berechnung des spätesten Liefertermins siehe hier: Lieferzeiten