| RefNo | EC/1890/12 |
| Previous numbers | Cert XI, 186 |
| Level | Item |
| Title | Roberts, Isaac: certificate of election to the Royal Society |
| Citation | V-P of the Literary and Phil Soc of Liverpool. Discovery and publication, by aid of photographic methods, of Nebulae in Andromeda, Orion, the Pleiades, and Vulpecula. Charting by photography a considerable portion of the stars of the northern hemisphere. Rediscovery of a minor planet by photography. Improvements in the apparatus and methods for giving long exposures in stellar photography. Invention of a machine for accurately charting the stars in a permanent manner by engraving them upon metal plates directly from the photographic negatives. The machine is also adapted for measuring the positions and magnitudes of the stars (Monthly Notices, Roy Astron Soc). Determination of the Vertial and Lateral Pressures of Ganular Substances (Proc Roy Soc, 1884); Investigation of the Movements of Underground Waters in Porous Rocks. Various papers on astronomical and geological subjects (see Cat of Sci Papers, Roy Soc). Often finding opportunities of rendering valuable aid to those engaged in scientific research. |
| Proposers | From General Knowledge: G H Darwin; P Frost; W H Besant; Warren de la Rue; R B Clifton; M W Crofton
From Personal Knowledge: A Ainslie Common; Charles Pritchard; E J Stone; J C Adams; J W L Glaisher; W H M Christie; J F Tennant; Robert S Ball; J N Lockyer; [S J Perry]; E Dunkin; G J Symons; Oliver J Lodge; W Boyd Dawkins; R Meldola |
| Extent | 1 sheet |
| AccessStatus | Open |
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Fellows associated with this archive
| Code | PersonName | Dates |
| NA7133 | Roberts; Isaac (1829 - 1904) | 1829 - 1904 |