PART I. AUTHOR-INDEX. 27 



Chwolson, 0. Gegenwartige Zustand der Actinometrie 15 (1892) 



1-166; Beibl. (1893) 927. 

 . Actinometrische Untersuchungen zur Construction eines 



Pyrheliometers und eines Actinometers. Antwort an Hrn. 



Savelief. Melanges de St. Petersb. 16 (1893) VII., 150 pp.; 



Beibl. (1894) 190-192. 

 Cinelli, M. Le formule generali per i fenomeni di diffrazione, etc. 



Nuov. Cim. (4) I (1895) 141-155; Beibl. (1895) 788. 

 Clarke, F. W. On the Constants of Nature. Smithsonian Contrib. 



(1888) 409 pp. 

 Gierke, Miss A . M. Historical and descriptive review of some double 



stars. Nature 39 (1888) 55-58; Beibl. (1889) 886. 



Spectra of the Orion Nebula and of the Aurora. Obs'y 



(1892) 



(1889) 363-394. 



New Star in the Wagoner. Astron. and Astrophys. 

 504-513; Beibl. (1893) 207. 

 Another spectroscopic binary star. Knowl. 18 (1895) 

 110-112. 



Some anomalous sidereal spectra. Obs'y 18 (1895) 

 193-196. 



Five short-period variables. Obs'y 19 (1896) 11 5-1 16. 

 A new class of variable stars. Obs'y 20 (1897) 52-55. 

 Clcve, P. F. Sur la presence de helium dans la Cleveite. C.-R. 120 

 (1895)834-835; Beibl. (1895) 568. 



. Sur la densite de I'helium. C.-R. 120 (1895) 1212. 



Clifford, H. E. Harcourt's Pentan-Unity Lamp. Technological 



Quar. 3 (1890) 167-169; Beibl. (1891) 34. 

 Cloiseaux, Des. Sur I'indice de refraction du chlorure d 'argent natu- 



rel. Bull. Soc. min. France 5 (1882) 25. 

 Cochin, D. Spectres de flammes de quelques metaux. C.-R. 116 



(1893) 1055-1057; Beibl. (1893) 652. 

 Cohen, E. Bin neues Meteoreisen. Sitzb. Berliner Akad. (1898) 

 607-608. 



. Inversionsgeschwindigkeit in Alkohol-Wassergemischen. 



Z. phys. Chem. (1899) 145-153. 

 Cohn, E., und P. Zeemann. Ausbreitung elektrischer Wellen im 



Wasser. Versl. Akad. Amsterdam 4 (1896) 108-116. 

 Cohn, F. Bahnelemente des V. Jupitermondes. Astron. Nachr. 142 



(1897) 289-337. 

 Coit, J. B. Solar prominences. Astron. J. 16 (1896) 67-69. 

 Colardeati. Spectres magnetiques au moyen de substances peu mag- 

 netiques. J. de phys. 6 (1887) 83-90. 



