36£ Scientific Intelligence. 



2. Occultaitoiu of Stars observed at Wilna. By M. Slawinski. 



.00* A -1 t T • f^"*- ^^^ 8' 55".2 very precise. 



1825, April 1, e Leonis, 1 1?_ 1 1 i^r ,.. « vii 1 , «, 

 ' *^ ' (Era. 11 15 14 .2 a little doubtful. 



23, Star (Mag. 8, 9,) Ira. 11 22 29 exact. 



1826, Feb. 15, 208 Tauri, Im. 6 && 58.8 good. 



1827, March 18,A Librffi, Im. 17 4 55.9 good enough. 



3. Occultatton of Saturn observed at Wilna. By M. Slavtinski. 

 1»2C, Feb. 16, Saturn, 1st Ansa, ^3^ 11' 58".8\ 



1st Limb, lm.\ 3 12 8 .8 > Sidereal time, Ob- 



f 3" 11 

 5 3 12 

 C3 U 



2d Ansa, CS U 48 .3 J servation good. 



4. Occultatton of the small star of the double star of0 Scorpii, observed by 

 Mr Riddle. — At Greenwich Hospital, in longitude 8" west of Greenwich 

 Observatory, and in latitude 51° 28' 53"north, the small star of /S Scorpii was 

 eclipsed by the southern dark limb of the moon, on the 25th September 

 1827, at 6^ p. M., but the larger star was not eclipsed at all. — Ann. of Phil. 

 June 1828, p. 26. 



5. Comet of June 1827. — The elements of this comet computed by 

 M. Benj. Walz of Nismes are, 



Passageof Perihelion 1827, - - June 8. 336 

 Mean time for Midnight at Paris, 



Perihelion Distance, - - ^ - » 0.808 



Long, of Perihelion, - - - 297° 34' 18" 



Long, of Node, 31814 48 



Inclination of Orbit, - - - - 43 37 48 

 Motion, retrograde. 



6. Comet of September 1827 similar to that of 1780.— M. Walz has 

 given the following elements of this comet. 



Passage of Perihelion, 



Mean time from Midnight at Paris, 



Perihelion Distance^ 



Long, of Perihelion, 



Long, of Node, 



Fnclination of Orbit, 



Motion, retrograde. 



OPTICS. 



7. Luminxms Appearance of the Sea near Prince of Wales* Island.-^ 

 Nothing is more singular in these seas than their phosphorescent appear- 

 ance by night, the ocean showing, like a vast lake of liquid fire, melted sul- 

 phur or phosphorus. In many bays, such as the harbour at Prince of 

 Wales' Island, the bodies which emit this singular light exist in such vast 

 quantity that a boat may readily be distinguished at the distance of several 

 miles by the brilliant light, resembling that of a torch, proceeding from the 

 water, agitated by her bow and oars* We have seen the sea rendered of a 



