a ol 
The Great Comet of 1861. 257 
: tail was curiously grooved and striated. It was noticed that 
i th the principal ray and the dark channels penetrated within 
; € outline of the curved tail, the latter being clearly separated 
from the principal ray even to the naked eye by a dark eleft 
Just above their intersection. The well defined margin of the 
principal ray admitted of a very exact delineation, even as far 
as « Ophiuchi, 100° from its origin. 
Care. The sk 
that there could be no room for doubt as to the reality of the 
ojecting an arc of a 
it was found to lie 
ithi i far as a distance of thirty 
there was still mgs 
e 
. properly discussed without requiring more 
resent, devoted to them. 
th ithin the last few days the principal ray in the part near 
€ nucleus, has assumed a more regular sweep in the direction 
posed to that of the diffuse tail, whic 
g ‘ 
The telescopic phenomena, though interesting, have not pre- 
ith those which char- 
1861. 
