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Application of dicyanin to the photography of stellar spectra (1919)
National Bureau of Standards · leaf 21
Fig, 6.—Atlas and Pleione. Class B. Plate H1783 (498-1) Bulletin Bureau of Standards, Vol. 14 o csr^. CO I I … Fig. 7.—a Tauri. Class A5. Plate HlfS$Astronomy · Photography · General Physics
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