Scientific Intelligence. 



continuous ascent or expansion outwards from the nucleus. Sevei 

 ir history partially recov 

 opes is found to have v 



enyelopes have been recognized, and their history p 



irregularly from 4 days ] 



Section Xlir gives an account of the o"'uter faint veil. 

 Section XIV relates to the deviation of the initial axis of the tail from 

 mat d"'*''^^'o" ^^/ ^^^ '^^^"* ^®*^*^'" P'"<^'ouged. This deviation wasesti- 

 This volume contains a more thorough discussion of the physical pe- 

 culiarities of the comet of 1858 thnn has ever been published respecting 

 obably long continue to be the standard 

 ' ■ ' ■ does great credit to 



not so tar as we know, ever been equalled by any similar work at home 

 or abroad. ^ '' •' 



2. Cornel IT, 1862.— This comet was discovered, at the Dudley Obser- 

 vatory, on the evening of July 18th by Mr. Thomas Simons. 



VV hen first seen it appeared as a nebul* considerably condensed at 

 the centre, the light being intense enougli to be easily observed when the 

 wires of the micrometer were illuminated. 



Un the evening of the 31st the embryo of a tail was distinctly seen, 

 and as early as the 25th the light was more concentrated on one side, 

 showing that the tail was already in process of formation. 



As it is now approaching both the earth and sun, and being so favora- 

 bly situated for observation, it will without doubt attain great brilliancy. 

 At the present time (Aug. 15th) the tail can be traced a distance of 12 

 degrees. 



The following are observations for position : 

 1862, July 1^' ""■ S"2S"ST 5^ 23-''57-58 ^6r'lo^05"-i^ 



Aug. 12 11 05 30 -2 8 30 51 -50 

 July 18th. Comet compared with 10-5 Mag. star. 



5*" 24n> 04»-03 -|.67° 44'*'io"-13 



The observations of July 25, 26 and Aug. 12, were made with the 

 Olcott Meridian Circle at the lower culmination 



Fifteen wires were observed for A. R. and the times of transit recorded 

 on the chronograph by the magnetic method. 



The observations are not corrected for parallax. 



„ . G. W. Hough, Assist. Dudley Observatory- 



Communicated by instructions from the Director. 

 R.L£*^^"x'^^^*' f^*"*^" ('"^ * '«"er to the Editors, by Loris M. 

 RoTHBKFORo.)_On the 8th of March last I received the Bumber of joaf 



