III. 



LIST OF BOOKS AND MEMOIRS RELATING TO 

 VARIABLE NEBULAE. 



[Arranged alphabetically by Authors.] 



Abbott: Mon. Not. R. A. S., xxv, 192; xxviii, 200; xxxi, 226, 230, 231 ; 

 xxxii, 61. [Nebula in Argo.~\ 



: Mon. Not. R. S. Tasmania; 1870, p. 21 j 1871, p. 17; 1872, p. 27. 



[Same.] 



Airy : Mon. Not. R. A. S., xxxi, p. 233. [Same.] 



Auwers : A. N, lviii, col. 361. [On the variability of No. 548, Bonn 

 zone + 30°.] 



: Mon. Not. R. A. S , xxii, p. 150. [Hind's missiDg nebula of 



1852.] 



Bredichin : Annates de V Observatoire de Moscou, ii, p. 125. [Tempel's 

 nebula in the Pleiades.] 



Bulliadus : P- T., 1667, p. 459 ; p. t.,\, p. 162. [Thenebula of Andromeda 

 became invisible to the naked eye in February and March, 1667.] 



Burton : Mon. Not. R. A. S., xxxvi, p. 69. [Nebula in Argo.~\ 



Butillon: G. R., 1848, xxvii, pp. 112. 188. [Proper motion of M. 92.] 



Cassilli : Elemens d'Astronomie, 1740, 4°, p. 77. [Andromeda nebula.] 



Chacomac : Bull. Inter, de I'Obs. de Paris, 1863, April 28. [1191 h.] 



: Nebuleuse variable de f Taurcau. C. R., lvi, 1863, p. 637. 



: National Almanac, [U. S.,] 8vo, 1864, p. 36. [Notice of dis- 

 covery of his variable nebula.] 



: Mon. Not. R. A. S. t xxii, p. 277. [Missing nebula in Coma Bere- 

 nices.'] 



69 



