PUBLISHED PAPERS OE THE OBSERVATORY, SHOW- 

 ING THE AUTHORSHIP OF THE VARIOUS RE- 

 SEARCHES HITHERTO CONDUCTED. 



CONTRIBUTIONS FROM THE MOUNT WILSON 

 SOLAR OBSERVATORY. 



Reprinted from the Aslrophysical Journal. 

 VOLUME i. 



1. A Study of the Conditions for Solar Research at Mount 



Wilson, California. George E. Hale. 27 pp. 



2. The Solar Observatory of the Carnegie Institution of 



Washington. George E. Hale. 22 pp., 5 pi. 



3. A Program of Solar Research. George E. Hale. 5 pp. 



4. Some Tests of the Snow Telescope. George E. Hale. 5 pp., 



3 I>1. 



5. Photographic Observations of the Spectra of Sun-Spots. 



George E. Hale and Walter S. Adams. 34 pp., 2 pi. 



6. Some Notes on the H and K Lines and the Motion of the 



Calcium Vapor in the Sun. Walter S. Adams. 9 pp. 



7. The Five-Foot Spectroheliograph of the Solar Observatory. 



George E. Hale and Ferdinand Ellerman. 10 pp., 3 pi. 



8. Sun-Spot Lines in the Spectra of Red Stars. George E. 



Hale and Walter S. Adams. 6 pp. 



9. Latitude and Longitude of the Solar Observatory. George 



E. Hale. 4 pp. 



10. The Spectroscopic Laboratory of the Solar Observatory. 



George E. Hale. 7 pp., i pi. 



1 1. Preliminary Paper on the Cause of the Characteristic Phe- 



nomena of Sun-Spot Spectra. George E. Hale, Walter 

 S. Adams, and Henry G. Gale. 29 pp. 



12. Sun-Spot Lines in the Spectrum of Arcturu-. Walter S. 



Adams. 9 pp. 



13. A loo-Inch Mirror for the Solar Observatory. George E. 



Hale. 5 pp. 



14. A Vertical Ccelostat Telescope. George E. Hale. 6 pp., 



i pi. 



15. Second Paper on the Cause of the Characteristic Phenom- 



ena of Sun-Spot Spectra. George E. Hale and Walter 

 S. Adams. 20 pp., 2 pi. 



16. The Heliomicrometer. George E. Hale. 7 pp., i pi. 



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