Reference Code: GBR/0180/RGO 7/44
Scope and Contents
1. SpectroscopesVarious memoranda concerning spectroscopes, 1901-1925.1. 'Spectroscope', 21 September 1901.2. 'Spectroscope', 23 September 1901.3. 'Photographic Spectroscope', January 1900.4. 'Photographic Spectroscope', 14 October 1901.5. 'Christie's direct-vision "half prism" spectroscope'.6. 'Wave lengths of spectrum lines'.7. 'Standard Wavelengths', 1922 (printed).8. 'Report on Pure Carbon Electrodes', 1925.2....
1895 - 1926
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