24 LITERATURE OF THE SPECTROSCOPE. 



Campbell, W. W. {Cont'd). The variable velocity of o Leonis in 



the line of sight. Astroph. J. 8 (1898) 291. That of x Draconis. 



Astroph. J. 8 (1898) 292. 



. Spectrum of o Ceti. Astroph. J. 9 (1899) 31-36. 



. Variable velocity of t, Geminorum in the line of sight. 



Astroph. J. 9 (1899) 86; do. of i Pegasi, ibid. 310; of 6 Dra- 



conis, ibid. 311. 

 . Visible spectrum of Nova Sagittarii. Astroph. J. 9 (1899) 



308. 

 . Comparison of the visual hydrogen spectra of the Orion 



Nebula and of a Geissler tube. Astrophys. J. 9 (1899) 312-317. 

 Influence of the Purkinje Phenomenon on observations 



of faint spectra. Astrophys. J. 8(1898) 317-319; 10 (1899) 22- 

 24. — See also Heringund Hillebrand, Sitzb. Wiener Akad. (1889); 

 Konig, Ann. Phys. n. F. 45 (1892) 607; and Scheiner, Astrophys. 

 J. 7 (1898) 295. 



. The spectroscopic binary Capella. Astrophys. J. 10 



(1899) 177. 



. Variable velocities in the line of sight of e Librae, h Dra- 



conis, I Andromedag, e Ursae Minoris and w Draconis. Astro- 

 phys. J. 10 (1899) 178-179; do. of a Ursae Minoris, Astrophys. J. 

 ID (1899) 180-183; do. of y8 Capricorni and of v Sagittarii, ibid. 

 241. 



. The wave-length of the green coronal line, and other 



data resulting from an attempt to determine the law of rotation 

 of the Solar Corona. Astrophys. J. 10 (1899) 186-192. 



Candolle, C. de. Etude de Taction des rayons ultraviolette sur la for- 

 mation des fieurs. Arch, de Geneve 28 (1892) 265-277. 



Cantone, M. Sui sistemi di frangie d'interferenza prodotte da una 

 sorgente di luce a due colori. Nuov. Cim. (3) 23 (1888) 59-64; 

 Beibl. (1889) 20. 



Cantoni. Congetture su le azioni a distanza. Rend. Accad. Roma 

 (1890) 379-383- 



Capps, E. V. Optical calibration of the slit of a spectrometer. Proc. 

 Amer. Assoc. 48 (1899) 131. 



Carbiitt, J. Photographing the Invisible. Wilson's Photogr. Mag. 

 34 (1897) 221-225. 



Cardani, P. Sulle scariche elettriche nel rame e nel ferro. Atti 

 Accad. Roma 4 (1895) 242-250. 



Carnazzi, P. Influenza della pressione sulT indice di rifrazione dei gas. 

 Nuov. Cim. 6 (1897) 385-401; Beibl. (1898) 661. 



