VOL. XXXVIII.] PHILOSOPHICAL TKANSACTIONS. ()03 



make furtlier observations of tliem ; because he thinks there is much more in 

 them worthy (jf the inquiry of the curious, than has hitherto been thought ; 

 and because he fears he will not be able to pursue his observations much 

 further, as his reflpctor loses its excellence and power, by beginning to 

 tarnish. 



These appearances in the heavens, have had the name of nebulous stars: but he 

 says they are neither stars, nor such bodies as emit, or reflect light, as the sun, 

 moon, and stars do ; nor are they congeries, or clusters of stars, as the milky 

 way : but whitish areae, like a collection of misty vapours : whence they have 

 their name. 



There are many of them dispersed about, in diverse parts of the heavens. 

 This catalogue of them, here trancribed from Hevelius's Prodromus Astro- 

 nomiae, may be useful to such as wish to inquire into them. 



A Catalogue of the Nebuloste. 



Their Places. Their R. Asc. Their Declin. 



Anno 1660. Anno. 1660. 



In Andromeda's Girdle 6'' 4' 4 5". .3y° '27' 57" n. 



Forehead of Capricorn 300 2 53 . . 20 1 53 s. 



Another preceding its eye 301 5g 55 . . ly 11 30 s. 



Another following it 302 35 9 . . I9 36 O s. 



One above those, adjoining to the eye of Capri. 302 25 31 ..18 48 58 s. 

 Preceding above the Swan's Tail, and last in its 



N. foot 304 54 8 . . 47 54 20 N. 



One following a star above the Swan's Tail, out 



of the constellation 312 lO 5 . . 53 5 20 n. 



On the outside of Hercules's left foot 264 52 46 . . 48 9 10 n. 



In the left leg of Hercules 265 38 37 . . 38 5 50 n. 



On the top of Hercules's Head 252 24 3 . . 13 18 37 n. 



At the Ear of Pegasus 332 38 45 . . 3 3 12 n. 



In the western border of Sobieski's Shield. . . . 272 32 34 . . 14 23 35 s. 



Under the beam of the Scales of Libra 219 2d 15.. 9 16 27 s. 



Above the back of Ursa Major 1 83 32 4 1 . . 60 20 33 n. 



In the third joint of Scorpio's Tail 12 43 00 . . 19 l O 



X long. . . s. lat. 



Between Scorpio's Tail, and the Bow of Sagitta. 24 32 00 . . 1 1 25 O 



X long. . . s. iat. 



Besides these. Dr. Halley, in Phil. Trans. N° 347, mentions one in Orion's 

 Sword ; another in Sagittary ; a third in the Centaur, never seen in England ; 

 4 H 2 



