128 LITERATURE OF THE SPECTROSCOPE. 



Pickering, E. C. (Cont'd). A new form of stellar photometer. As- 



trophys. J. 2 (1895) 89-96; Beibl. (1896) 197. 

 . The new star in Carina. Observ. 18 (1895) 436, 443; 



Beibl. (1897) 345. 

 . Variable star clusters. Astron. Nachr. 139 (1896) 137- 



140; Beibl. (1897) 345. 

 . New variable star in Delphinus of Algol type. Astron. 



Nachr. 139 (1896) 224. 

 - . Wells's Algol Variable in Delphinus. Astron. Nachr. 



140 (1896) 23. 

 . The new star in Centaurus. Astron. Nachr. 140 (1896) 



24-25; Astrophys. J. 3 (1895) 162-163. 



. New variable stars. Astron. Nachr. 140 (1896) 173-175. 



. The Cluster Messier 5 Serpentis N. G. C. 5904. Astron. 



Nachr. 140 (1896) 285-287. 

 . Ten new variable stars. Astron. Nachr. 141 (1896) 



34-37- 

 . Stars having peculiar spectra. Harvard Observ. Cir. 



No. 9 (1896); Astron. Nachr. 141 (1896) 169; Astrophys. J. 4 

 (1896) 142-143. 

 . Six new variable stars. Astron. Nachr. 141 (1896) 311; 



I 



Astrophys. J. 4 (1896) 234. 

 . Photometric light-curves of U Cephei and S Antliae. 



Astron. Nachr. 142 (1896) 9-12; Astrophys. J. 3 (1896) 281- 



285. 

 . Stars having peculiar spectra. New variable stars in 



Crux and Cygnus. Astron. Nachr. 142 (1896) 87-89. 

 . New variable star of the Algol type. Harvard Observ. 



Cir. 7 (1896); Astrophys. J. 3 (1896) 77, note, 



A new spectroscopic binary in Scorpii. Harv. Observ. 



Cir. No. II (1896); Astrophys. J. 4 (1896) 235; Astron. Nachr. 



142 (1896) 11-13. 

 . Relative motion of stars in the line of sight. Astrophys. 



J. 4 (1896) 370-373; Astron. Nachr. 142 (1896) 105-107. 

 . The Bruce Photographic Telescope. Astron. Nachr. 142 



(1897) 367-369- 



The spectrum of Z Puppis. Astron. Nachr. 142 (1897) 



399-401; Astrophys. J. 5 (1897) 92-94. 

 . Stars having peculiar spectra, and distribution of stars 



in a cluster. Astrophys. J. 5 (1897) 350-353. 

 . Variable star clusters. Astrophys. J. 6 (1897) 258-259. 



