A plane-grating spectrograph for the red and infra-red regions of stellar spectra
By: by Paul W. Merrill ...
Series: Contributions from the Mount Wilson Observatory.; no. 432
Published: 1931
Place of publication: [Chicago
Language: eng
Number of pages: 13
Subjects: Spectrograph.; Stars -- Spectra.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
"Reprinted from the Astrophysical Journal, vol. LXXIV, 1931."