Baly, E. C. C. (Edward Charles Cyril), b. 1871 · London, Longmans, Green · leaf 294
ding to these directions gave,with an electric lamp of 3 candle-power placed at i metredistance, a throw of 4i48 mm. As regards the galvanometer,needless to say, a very sensitive instrument must be employedPaschen describes the making of one, on the model ofThomsons astatic instrument, to which,… … THE INFRA-RED AND ULTRA-VIOLET REGIONS 277 carried out by Coblentz into the infra-red reflection and trans-mission spectra of a great number of minerals, with the view ofdetermining, if possible, the relation between their constitutionand the absorption which they exert. The apparatus consistedof a…
Spectrum analysis
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