326 PROCEEDINGS OF THE AMERICAN ACADEMY 



only were seen. The broad one, lying a little south of the equator, had 

 no longer its sides parallel, as on the 28th of January, but a deep hol- 

 low on its southern edge, reaching nearly across on the preceding side. 

 The principal northern belt was much broken and diversified with dark 

 spots and inequalities. But the most remarkable feature was a curd- 

 ling appearance of the whole intervals between the belts, and also of 

 the entire region about the south pole. 



" On the morning of the. 2d of February, we had a good view of 

 nebulae Herschel Nos. 1357 and 1376. Sir John Herschel's drawings, 

 given in the Philosophical Transactions of 1833, are faithful represen- 

 tations of the wonderful phenomenon which they present. The great 

 nebula in Andromeda shows a similar structure, but on a much larger 

 scale. A fourth, which we find to possess the same peculiarity, is 

 h 859, A.R. IP- ir-, Dec. -|-14° 30'; it resembles h 1357, but is 

 fainter. 



" We find the great nebula of Orion to be connected with those about 

 C and t Orionis. Sir John Herschel's No. 75 in his Cape Catalogue of 

 the stars in the nebula of Orion, which has heretofore been recorded 

 as a single star of the eighteenth magnitude, is a double star. The 

 direction of a line joining the components passes near 6^ ; the distance 

 is estimated at two seconds. No. 91 of the same catalogue has been 

 hitherto taken for a single star of the seventeenth magnitude. This 

 likewise is double, and the direction towards ^' of the Trapezium, and 

 the distance estimated at two seconds. The following one of this pair 

 is as precisely as possible on the following edge of the bright part of 

 the nebula, at the bottom of the Sinus Magnus." 



A communication was read from Mr. G. P. Bond, respecting 

 the great nebula in Andromeda ; the object of which was to 

 direct the attention of astronomers to a remarkable peculiarity 

 in its structure, which appears to have hitherto escaped notice. 

 The paper was accompanied by a drawing, taken from repeat- 

 ed examination with the twenty-three-foot refractor of the 

 Cambridge Observatory. Among the results of the employ- 

 ment of increased optical power upon this nebula has been 

 the union with it of several neighbouring nebulas, which have 

 hitherto been regarded as distinct bodies. This paper was 

 referred for detailed publication in the current volume of the 

 Memoirs. 



