18 
December 9, 1844. 
REV. J. H. TODD, D.D., Vice-President, in the Chair. 
Read, a letter from Rev. T. R. Robinson, D. D., on the 
periodical Meteors of the 10th August. 
Rev. H. Lloyd gave an account of two remarkable halos 
and paraselene, observed in May and June last : 
On the 27th of June, at 10° 30™ p. m., a very remarkable 
phenomenon of paraselenze was seen in Dublin. The moon 
was encompassed, as usual, by a halo, whose radius was about 
22 degrees, but so faint, that its presence was unnoticed by 
some of the observers. A cross of light traversed the place 
of the moon, the arms of which were horizontal and verti- 
cal, the light fading off insensibly towards their extremities. 
The remaining parts of the space within the halo were darker 
than the surrounding sky. At the extremities of the horizon- 
tal diameter of the circle were two brilliant paraselene, having 
tails of light extending from the moon; of these the eastern 
was the most distinct. The whole phenomenon is represented 
in the lithograph sketch in the Appendix. 
This beautiful phenomenon was witnessed by many observ- 
ers. The appearances are briefly described in the records of 
the Magnetical Observatory, by the assistant whose duty it 
was to observe at 10 p. m.; and I have likewise received notes 
of them from Mr. O’Neill, formerly my assistant in the ob- 
servatory (who has likewise furnished me with an interesting 
sketch), and from our Assistant Secretary, Mr. Clibborn. 
The state of the sky at 10 p.m., shortly before the appear- 
ance of the phenomenon, is thus recorded in the day-book of 
the Observatory: ‘* Sky all very lightly overcast ; small dark 
masses of cumulo-stratus above the southern horizon, the moon 
shining weakly through them.” ‘The barometer had been 
rising uninterruptedly during the 27th, and the three days - 
