PART I. AUTHOR-INDEX. 6l 



Hale, G. E. Presence of Helium in Cleveite. Astrophys. J. 2 (1895) 



. On the wave-length of the D3 Hne in the spectrum of the 



Chromosphere. Astrophys. J. (1895) 384-385; Beibl. (1896) 199. 

 and F. L. O. Wadsivorth. The Objective Spectroscope. 



Astrophys. J. (1896) 54-79. 



. Publications of the Lick Observatory, Vol. III. (1895). 



. Application of Messrs. Jewell, Humphreys, and Mohler's 



results to certain problems of astrophysics. Astrophys. J. 



3 (1896) 156-161. 

 . Effect of a total eclipse of the Sun on the visibility of 



the solar prominences. Astrophys. J. 3 (1896) 374-387. 

 . Comparative value of refracting and reflecting telescopes 



for astrophysical investigations. Astrophys. J. 5 (1897) 119-131. 

 . Note on a form of spectroheliograph suggested by Mr. 



H. F. Newall. Astrophys. J. 5 (1897) 211. 

 -. Relative frequency of the H and K lines in the spec- 

 trum of the chromosphere. Astrophys. J. 6 (1897) 157. See 



Huggins, ib. 77. 

 ■ — . Presence of carbon in the chromosphere. Astrophys. J. 



6 (1897) 412. 



. Spectrum of Saturn's Rings. Astrophys. J. 9 (1899) 185. 



-. Spectra of stars of Secchi's Fourth Type. Plates. 



Yerkes Observ. BuU. No. 7 (1899); Astrophys. J. 9 (1899) 271- 



272. 

 . Comparison of stellar spectra of the Third and Fourth 



Types. Plates. Astrophys. J. 9 (1899) 273. 

 Hall Maxwell. Spectrum of the Zodiacal Light. Observ. (1890) 



77-79; Beibl. (1890) 377. 

 . The Sidereal System, revised in 1896. Mon. Not. 57 (1897) 



357-378- 



Haller, A., et P. Th. Midler. Sur les refractions moleculaires, la dis- 

 persion moleculaire et la pouvoir rotatoire specifique des com- 

 binaisons du camphre. C.-R. 128 (1899) 1370-1373. 



Hallock, W. The photography of manometric flames. Proc. Roy. 

 Soc. (1894) 112-114; Phys. Rev. 2 (1895) 305-307. 



. Bolometric investigations in the infra-red spectrum of the 



Sun. Sci. 2 (1895) 174-178. 



Halki'achs, W. Zusammenhang des Electricitatsverlustes durch Be- 

 leuchtung mit der Lichtabsorption. Gott. Nachr. (1889) 99 pp. 



. Lichtgeschwindigkeit in verdunnten Losungen. Gott. 



Nachr. (1892) 302-309. 



