NEBULA, CLUSTEKS, ETC. 73 



Winnecke : A. N., li, col. 383. [Noel's observation of tj Argus.'] 



: A. N., lvii, col. 207. [Hind's variable nebula.] 



: A. N., lix, col. 65. [Merope nebula and nebula No. 548 Bonn 



zone + 30°.] 



Wolf, C : C. R., 1875, July 5, vol. lxxxi, p. 29. [Tempel's variable 

 nebula.] 



53 



