The Rev. Dr. Robinson on the Longitude of the Armagh Observatory, 1 15 



DUBLIN OBSERVATORY. 



The correction of the Dublin transit clock was on the 21st = -|- 35'. 75 by 

 a Lyrae and a Aquarii, and its rate = + 0'- 25, using the places of the Nautical 

 Almanac. It is confirmed by a Aquarii, Fomalhaut and a Pegasi on the 22nd. 



The correction on the 24th = -]- 36*. 53 by a Cygni, a Aquarii, a Pegasi, 

 and a Andromedag. 



Q 2 



