astronomer

English astronomer (1819-92) whose mathematical prediction of the existence of Neptune anticipated Le Verrier's discovery of that planet. Octavo. Unbound. Ten leaves and one blank. Paginated [35]-53. Very good. Five pages of text (35-9), four tables (pp.40-3) and a set of 'Tables containing the corrections to be applied to the values of the moon's equatorial horizontal parallax given in the nautical almanacs 1840-1855, in order to make them agree with those calculated from Mr. Adams' tables.' (pp.46-53). One small closed tear to antepenultimate leaf.

Signed 'R. A. Gregory'. One page, folio. Good, with one dogeared corner. Bearing the stamp of the Royal Society of Arts. Circular letter referring to an enclosure (not present) relating to an exhibition which 'will shew that by the combination of science and industry we have done nearly as much in four years of war as the Germans did in the preceding forty. More than 250 manufacturers are sending exhibits, and the Air Ministry will make a large display, as well as the Food Production Department.' Asks for 'a sympathetic editorial note or article'.

Gives details of where he is to be found in the coming week ("from 4 to 5 on each of those days at the Athenaeum club, I think at any rate by appointment, or I could call on you at the Temple at 4-15 on one of those days"). With marks and remains of gummed paper on reverse of otherwise-blank second leaf.