Celestial Photographs. The following is a list of reproductions of Celestial Photographs published by the Royal Astronomical Society for sale to the Fellows: 17 Photographed by J. M. Schaeberle Isaac Roberts E. E. Barnard E. E. Barnard E. E. Barnard E. E. Barnard Loewy and Puiseux E. E. Barnard E. E. Barnard E. E. Barnard E. E. Barnard Comet ƒ 1892 III. (Holmes), 1892 November 10 E. E. Barnard 18 Comet a 1892 I. (Swift), 1892 April 18 19 Portion of Moon (Alps, Apennines, &c.) 20 Nebula in Andromeda 21 Jupiter, 1892 September 26 22 Cluster M 13 Herculis (N.G.C. 6205) 23 Total Solar Eclipse, 1893 April 16 (5 sec.) 24 Total Solar Eclipse, 1893 April 16 (20 sec.) 25 The Moon (Age 7d 3h) 26 The Moon (Age 12d 6h) 27 The Moon (Age 16d 18h) 28 The Moon (Age 23d 8h) 29 The Sun, 1892 February 13 30 The Sun, 1892 July 8 E. E. Barnard Loewy and Puiseux Lick Observatory W. E. Wilson J. Kearney J. Kearney Lick Observatory Lick Observatory Lick Observatory Lick Observatory Roy. Obs., Greenwich Lick Observatory Lick Observatory Lick Observatory 42 Nebulæ M 81, 82 Ursa Majoris (N.G. C. 3031, 3034) 43 Cluster M 56 Lyræ (N.G. C. 6779) (enlarged) 44 Solar Corona, 1871 December 12, Baikul 45 Solar Corona, 1875 April 6, Siam 47 Solar Corona, 1882 May 17, Egypt 48 Solar Corona, 1883 May 6, Caroline Island 57 Dumb-bell Nebula, Vulpecula (N.G.C. 6853) 60 Annular Nebula, Lyra (N.G.C. 6720) 61 Meteor Trail and Comet Brooks, 1893 Nov. 13 67 Spectrum of Sun's Limb, 1898 January 22 74 Cluster M 13 Herculis (N.G.C. 6205) H. Davis Lockyer and Schuster Radford A. Schuster J. M. Schaeberle W. E. Wilson W. E. Wilson W. E. Wilson W. E. Wilson E. E. Barnard Roy. Obs., Greenwich 83 Comet 1901 I., 1901 May 9 84 Solar Surface with Faculæ, 1895 August 18 85 Solar Prominences, 1894 April 11 86 Nebula about Nova Persei, 1901 Sept. 20 87 Nebula about Nova Persei, 1901 Nov. 13 88 Total Solar Eclipse, 1901 May 18 (10 sec.) 89 Total Solar Eclipse, 1901 May 18 (40 sec.) 90 Comet b 1902 III. (Perrine), 1902 Sept. 29 91 Portion of Moon (Mare Serenitatis, &c.) 92 Portion of Moon (Rough Crater Region, Mare Nubium) 93 Portion of Moon (Tycho, Theophilus, &c.) 94 Portion of Moon (Bullialdus to Copernicus) 95 Portion of Moon (Copernicus, enlarged) 96 Great Nebula in Orion Photographed by G. E. Hale W. H. M. Christie Roy. Obs., Cape of G. H. Perth Obs., W. Australia Roy. Obs., Greenwich Yerkes Observatory Yerkes Observatory Yerkes Observatory Yerkes Observatory Yerkes Observatory Roy. Obs., Greenwich 132 Sun, 1905 February 8 134 Nebula near Eridani, 1905 January 8 139 Nebula H V. 42, &c., Coma (N.G.C. 4631) 141 Nebula Index Cat. 405 Persei 142 Clusters in Perseus (N.G.C. 869, 884) 143 Cluster H VI. 30 Cassiopeia (N.G.C. 7789) 144 Eclipse, 1905 August 30 (5 sec.) 145 Eclipse, 1905 August 30 (20 sec.) 153 Great Star Cloud in Sagittarius 154 Small Star Cloud in Sagittarius Roy. Obs., Greenwich Max Wolf Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts Isaac Roberts W. H. M. Christie W. H. M. Christie W. H. M. Christie W. H. M. Christie E. E. Barnard E. E. Barnard E. E. Barnard E. E. Barnard E. E. Barnard Nos. 44-55, Nos. 64, 65, and No. 147 form a series of corona photographs, oriented and reduced to the same scale. The above photographs are now on sale to Fellows as prints, either platinotype or aristotype, mounted on sunk cut-out mounts, measuring 12 inches by 10 inches; also unmounted, and as lantern slides. Nos. 44-55 and Nos. 64 and 65 are also supplied as transparencies, 6 inches square. Price of prints, mounted 1s. 6d. each, uumounted 1s. each; lantern slides, Is, each; packing and postage extra. Transparencies, 6 inches square (Nos. 44-55 and Nos. 64 and 65), 38. 6d. each. Orders to be addressed to W. H. Wesley, Burlington House, London, W. In ordering prints or slides the R.A.S. Reference No. only need be quoted, but in the case of prints it should be stated whether platinotypes or aristotypes are required, and whether mounted or unmounted. The Gold Medal. The Council have awarded the Gold Medal of the Society to Sir David Gill, K.C.B., for his Contributions to the Astronomy of the Southern Hemisphere and his other Astronomical Work. The President, in his Address to the Society, gives the grounds upon which the award has been founded. Publications of the Society. During the past year vol. lxvii. of the Monthly Notices has been issued. The following paper, reprinted from the Philosophical Transac tions of the Royal Society, has been issued as an appendix to the Memoirs : F. W. Dyson, Determination of Wave-length from Spectra obtained at the total solar eclipses of 1900, 1901, 1905. |
