PART I. AUTHOR-INDEX. 77 



Janssen, J. (Cont'd.) Lava peur d'eau dans I'univers. Bull. Soc. 



astron. France (i8g6) 226-227. 

 Jaumann, G. Eine Methode zur Bestimmung der Lichtgeschwin- 



digkeit. Sitzb. Wiener Akad. 100 II (1891) 1239-1243. 

 . Zur Kenntniss des Ablaufs der Lichtemission. Ann. 



Phys. n. F. 53 (1894) 832-840; Astrophys. J 2 (1895) 215-223. 



. Ueber Lichtemission. Ann. Phys. n. F. 2 (1895) 241-242. 



. Longitudinales Licht. Ann. Phys. n. F. 57 (1896) 147- 



184. 

 . Interferenz und die elektrostatische Ablenkung der Katho- 



denstrahlen. Sitzb. Wiener Akad. 106 II (1897) 533-550; Ann. 



Phys. n. F. 64 (1898) 262-278. 

 . Interferenz der Kathodenstrahlen. Ann. Phys. 67 (1899) 



741-780. 

 Jesse, 0. Leuchtende Wolken. Beibl. (189 1)355. 

 . Die Hohe der leuchtenden Nachtwolken. Astron. Nachr. 



140 (1896) 161-167; Beibl. (1896) 697. 

 Jewell, L. E. The absolute scale of intensity for the lines of the solar 



spectrum and for quantitative analysis. Astron. and Astrophys. 



12 (1893) 815-821; Beibl. (1894) 670. 



. The object-glass grating. Astrophys. J. 13 (1893) 44-48. 



. Spectrum of Mars. Astrophys. J. i (1895) 3ii~3i7'> 



3 (1896) 255-259; Beibl. (1896) 36. 

 . The coincidence of solar and metallic lines. Astrophys. 



J. 3(1896)89-113; 4(1896)138. 

 , J. F. Mohler, and W . J. Humphreys. Note on the pres- 

 sure of the "reversing layer" of the solar atmosphere. Astro- 

 phys. J. 3 (1896) 138-140; Beibl. (1896) 537. 

 . The Spectrum of Mars. Astrophys. J. 3 (1896) 255- 



258. 



. The determination of the relative quantities of aqueous 



vapor in the atmosphere by means of the absorption lines of the 

 spectrum. Astrophys. J. 4 (1896) 324-342. 



. Oxygen in the Sun Astrophys. J. 5 (1897) 99-100.. 



. Dr. Arendt's spectroscopic investigation of the varia- 

 tion of aqueous vapor in the atmosphere. Astrophys. J. 5 (1897) 

 279-281. 



. The structure of the shading of the "H" and "K" 



and some other lines in the spectrum of the Sun and arc. Johns 

 Hopkins Univ. Cir. 17 (1898)62-63; Astrophys. J. 8 (1898) 51-53. 



. A chromospheric line near K. Astrophys. J. 8 (1898) 



119-120. 



