 | William Crookes, T. A. Malone, George Shadbolt, J. Traill Taylor, William Blanchard Bolton, Thomas Bedding - 1916 - 918 pages
...in Celestial Photography." Bv Henry Draper, MD, Smithsonian Contributions to Knowledge, Voî. 34. " On the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors." By George W. Ritchey. Smithsonian Contributions to Knowledge, Vol. 34. In Fig. 6, A is a regnlar Brown... | |
 | 1905 - 726 pages
...Telescope, 15J inches in aperture, and its use in Celestial Photography (1864; reprint). — Ritchey, GW, On the modern Reflecting Telescope and the making and testing of Optical Mirrors. Washington (Smiths. Contr. Knowl.) 1904. roy. 4. 58 and 55 pg. with 13 plates and 62 figures. 10 Exner... | |
 | 1905 - 1124 pages
...review of it here is quite unnecessary. The second part, of nearly the same length, bears the title, On the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors, by George W. Ritchie of the Yerkes Observatory. This is a highly interesting description of the refined... | |
 | Naturforschende Gesellschaft (Danzig, Germany). Bibliothek - 1904 - 342 pages
...relative intensities of artificial light etc. London 1825. 4°. [ebenda P. I, Bd. 115.] Ritchey, GW On the modern reflecting telescope, and the making and testing of optical mirrors. With 13 PI. u. 15 Fig. Washington 1904. 4°. [Smithsonian contributions to knowledge vol. XXXIV.] Robinson,... | |
 | Royal Astronomical Society - 1905 - 1072 pages
...the Italian Government ; H. Draper and GW Ritchey, Construction of a Silvered Glass Reflector, and on the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors ; and NS Shaler, Comparison of the Features of the Earth and the Moon, presented by the Smithsonian... | |
 | 1905 - 662 pages
...Constructinn of a Silvered Glali Telescope of 15Va in- in Aperture and its use in Celestial Photography, and On the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors". With 13 Plates and Engravings. (Smithsonian Contributions to Knowledge.) Roy. 410, sd., pp. 56 bis... | |
 | Sampson Low - 1906 - 314 pages
...Telescope, fifteen and a half inches in aperture, and its Use in Celestial Photography, by H. Draper. And on the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors, by GW Kitchey. 13 Plates. Roy. 4to. ewd. pp. 108, 6s. net (Smithtoninn Contribution» to Knowledge)... | |
 | Massachusetts - 1906 - 1152 pages
...fiftot'ii and a half incliei In aperture, and its use in celestial photography, by Henry Draper, and On the modern reflecting telescope and the making and testing of optical mirrors, by 0. W. Kltchcy. — Miscellaneous collections. Vol. 44,46. Wash., 1904-05. 2 v. 8°. Plates. [3]... | |
 | State Library of Massachusetts - 1906 - 270 pages
...telescope, fifteen and a half inches In aperture, and its use in celestial photography, by Henry Draper, and On the modern reflecting telescope and the making and testing of optical mirrors, by 4. W. Kitchey. — Miscellaneous collections. Vol. 44, 46. Wash., 1904-05. 2 r. 8°. Plates. [3]... | |
 | William Frederick Steve - 1907 - 64 pages
...grinding and Polishing, in Smithsonian contributions to Knowledge, Vol. XIV, 18C4. 2. a. W. Ritchey. - On the Modern reflecting Telescope and the Making and Testing of Optical Mirrors, in Smithsonian Contributions to Knowledge, vol. XIV, 1864. 3. Richard Threlfall - On Laboratory Arts.... | |
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On the Modern Reflecting Telescope and the Making and Testing of Optical Mirrors. 
