354 Scientific Intelligence. 



Western space, - 3"472 \ 2d J! et 



Eastern space, - 3 472 j 2Q 0b§ 



Of the last set ten were made by Mr Herschel, and gave 

 Western space, - 3"612 



Eastern space, - 3 442 



and ten by Mr South, which gave 



Western space, - 3"331 



Eastern space, - 3 502 



Hence it follows that the phenomenon is an optical deception. 

 Prof. Struve, however, is decidedly of opinion, from observations with 

 his splendid achromatic telescope, that Saturn is not in the centre of his 

 ring. From a mean of 15 measurements he makes the apparent dis- 

 tance on the east side 11".272, and on the west side 11".390, making a dif- 

 ference of 0".215. The probable error of his mean measurements he re- 

 gards as 0".024, the ninth part of the difference above found. 



3. Reappearance of the new Variable Star in the Serpent. — This variable 

 star, which we have mentioned in No. xv. p. 167, has, according to Pro- 

 fessor Harding, now became visible, and has attained the 8th or 9th 

 magnitude. Its position the beginning of this year is, R. Asc. 15 h 46 m 45 s . 

 N. Decl. 15° 39' 30". 



4. Length of the Seconds Pendulum at Paramatta. — From a mean of 41 

 experiments, the length of the pendulum vibrating seconds at Paramatta, 

 in vacuo at the freezing point, and at the level of the sea, is 39.071618 En- 

 glish inches, or 992.412801 millimetres. 



METEOROLOGY. 



5. Shower of Ice in Staffordshire. — On Saturday the 9th of August there 

 was a fall of solid ice at Horsley in Staffordshire. Some of the pieces were 

 three inches long by one inch broad, and others were about three inches in cir- 

 cumference, and quire solid. One gentleman in Dudley had L. 70 worth 

 of glass broken in his own house, and at Mr York's house near the Hors- 

 ley Iron Works, about 150 panes of glass were broken. About 100 panes 

 were broken at the iron works. The storm was accompanied with very 

 heavy thunder, but no lightning. The crops upon which the ice fell are 

 said to be completely ruined. 



6. Meteor of a Green Colour, — On the night of the 11th of February, 

 between eleven and twelve o'clock, as I was crossing the East River, be- 

 tween this city and Long Island, I observed a beautiful meteor which was 

 visible for about the space of two seconds. Its course was from a point 

 perhaps 5° below the zenith, toward the horizon in a N.E. direction. It 

 described an arc of perhaps 20°, when it apparently exploded, but without 

 any report that I could hear. Its colour was a singularly pure grass green, 

 of a light shade; the trail which it left was of the same colour, and so 

 were the scintillations which accompanied its apparent explosion. The lat- 



