Don _ C. W. MARSH. 
Later on I wish to submit the specimens of the above four 
minerals forwarded to me by Mr. Marsh to a fuller examination. 
—A. Liversidge. | 
On THE COMET 1n tHE CONSTELLATION ANDROMEDA. 
By Joun TEBBUTT, F.R.A.S. &e. 
[Read before the Royal Society of N.S. Wales, December 7, 1892. | 
On November 12th the following cable message from London, 
dated November 10th, appeared in the Herald :—“ A comet has 
been discovered in the constellation Andromeda : it:is increasing 
in brightness.” Clouds prevented a search for the comet on the 
evening of the 12th, but on the following evening the sky was 
beautifully clear, and I accordingly swept the constellation referred 
to with an ordinary opera-glass and soon detected a small nebulous 
object close to the Great Nebula. It could be seen in the same 
field of view with the Great Nebula, and was just visible to the 
naked eye. I succeeded in obtaining three differential measures 
of its position, but they did not afford any indication of proper 
motion. The object could not, however, be found in a Catalogue 
of Nebule visible in a telescope of four inches aperture. There 
was therefore prima facie evidence of its being the comet tele- 
graphed from London. The next evening the sky was densely 
clouded, but on the 15th I again succeeded in observing the object 
and found that it had changed its position sensibly in the forty- 
eight hours. Its cometary character was therefore established 
beyond doubt. Had it not been for a sensational London cable 
message appearing in the daily press on November 16th to the 
effect that the new comet just discovered in Andromeda would be 
only a million of miles from the earth on the 27th, I should have 
