astronomer

4pp., 12mo. Bifolium. Very good, on lightly-aged paper. Begins: 'In January 1957 the British Astronomical Association formed a Radio-Electronics Section. [...] The great stimulus to the Section's activities was the launching of the first Soviet Earth satellite. Its members made both visual and radio observations of Sputnik 1 and Sputnik 2 which have been reported elsewhere.

2pp., 4to. Bifolium. Good, on lightly-aged paper. Black wax seal adhering to reverse of second leaf, which is addressed, with postmarks, by Rigaud to 'Revd. W. T. Hopkins / Elmdon House / Coventry'. He explains, with two diagrams, a geometrical mistake by Hopkins, the letter beginning: 'Your difficulty arises entirely from your imagining that the squares of lines are proportionate to the lines themselves - This is by no means the case'.

2pp., 12mo. Good, on lightly-aged paper. The paper appears to have an 1890s watermark, and the correspondence may relate to the publication of Huggins's 'Atlas of representative Stellar Spectra', printed by Hazell, Watson & Viney for William Wesley & Son in 1899. Apparently impressed by the speed of Viney's response to his last letter, Huggins begins 'Your lightning is treble-greased.' He is returning the corrected proof, and sent 'a new copy with your name written on, by this morning's post as yr.

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.