VOL.LXXV.] PHILOSOPHICAL TRANSACTIONS. ()Q3 



The first I shall mention is a milky ray of more than a degree in length. It 

 takes h (Fl. 52) Cygni into its extent, to the north of which it is crookedly 

 bent so as to be convex towards the following side ; and the light of it is pretty 

 intense. To the south of k it is more diffused, less bright, and loses itself with 

 some extension in 2 branches, I believe ; but for want of light I could not deter- 

 mine this circumstance. The northern half is near 2' broad, but the southern is 

 not sufficiently defined to ascertain its breadth. 



The next is an extremely faint milky ray, above 3. degree long, and 8 or lo' 

 broad ; extended from north preceding to south following. It makes an angle of 

 about 30 or 40 degrees with the meridian, and contains 3 or 4 places that are 

 brighter than the rest. The stars of the Galaxy are scattered over it in the same 

 manner as over the rest of the heavens. It follows £ Cygni 1 1.5 minutes in time, 

 and is 2° 19' more south. 



The 3d is a branching Nebulosity of about a degree and a half in right ascen- 

 sion, and about 48' extent in polar distance. The following part of it is divided 

 into several streams and windings, which, after separating, meet each other again 

 towards the south. It precedes £ Cygni l6 m in time, and is 1° 16' more north. I 

 suppose this to be joined to the preceding one ; but having observed them in 

 different sweeps, there was no opportunity of tracing their connection. 



The 4th is a faint, extended milky ray, of about 17' in length, and 12' in 

 breadth. It is brightest and broadest in the middle, and the ends lose themselves. 

 It has a small, round, very faint nebula just north of it ; and also, in another 

 place, a spot, brighter than the rest, almost detached enough to form a different 

 nebula, but probably belonging to the great one. The ray precedes a. trianguli 

 18 m .8 in time, and is 55' more north. 



The 5th is a streak of light about 27' long, and in the brightest part 3 or 4' 

 broad. The extent is nearly in the meridian, or a little from south preceding to 

 north following. It follows |3 Ceti 5 m .g in time, and is 2° 43' more south. The 

 situation is so low, that it would probably appear of a much greater extent in a 

 higher altitude. 



The 6th is an extensive milky Nebulosity divided into 2 parts ; the most north 

 being the strongest. Its extent exceeds 15'; the southern part is followed by a 

 parcel of stars which I suppose to be the 8th of the Connoissance des Temps. 



The /th is a wonderful, extensive Nebulosity of the milky kind. There are 

 several stars visible in it, but they can have no connection with that nebulosity, 

 and are, doubtless, belonging lo our own system scattered before it. It is the 

 17th of the Connoissance des Temps. 



In the list of these must also be reckoned the beautiful nebula of Orion. Its 

 extent is much above 1°; the eastern branch passes between two very small stars, 

 and runs on till it meets a very bright one. Close to the 4 small stars, which 



