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CHAPTERS ON THE STARS.
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Fig. 4. Spectra of α Cygni and α Tauri.
Fig. 5. Spectrum of α Orionis.
Fig. 6. Spectrum of γ Cassiopeæ.
Fig. 4. Spectra of α Cygni and α Tauri.
Fig. 5. Spectrum of α Orionis.
Fig. 6. Spectrum of γ Cassiopeæ.
