The maximum temperature in the 12 months was 78° on 

 July 9th. 



The minimum temperature in the 12 months was 9°-5 on 

 December 19th. 



Q) From Tables by Dr. Dalton, Society's Memoirs, Vol. 

 III. (new series), p. 494, and Vol VI., p. 572. 



(2) The mean of August, 1799, was 55°'0. 



f ) The mean of September, 1803, was 51°-7 ; 1807, 50°.l. 



(^) The mean of the year 1795 was 46°-4 ; of 1799, 44°-6 ; 

 of 1814, 45°-4 ; and of 1815, 46°-2. 



Mr. Atkinson stated that during the months of June and 

 August, he had observer the extraordinary rain-fall of 13 

 inches at Thelwell. The fall in July was not considerable. 



Mr. Dyer having stated that on the morning of August 

 Uth, a very loud explosion was heard in the neighbourhood 

 of Blackfriars, London, the sky being clear at the time, 

 a conversation took place on the subject of fire-balls and 

 meteorites, in the course of which Mr. Ekman stated that 

 during a most violent thunderstorm, passing over a tract of 

 land intersected by a rapid stream, he had distinctly seen fire- 

 balls, the diameter of which he estimated at 2ft., projected 

 from the clouds down into the water. The distance of the 

 point where he stood, from the point at which the balls struck 

 the water, could not have been more than 150 to 200 yards. 

 The phenomenon was witnessed in Sweden many years ago. 



Mr. Wild exhibited the universal or alphabet telegraph of 

 Professor Wheatstone, and pointed out the successive improve- 

 ments which had resulted in this admirable invention. 



A Paper, by Arthur Cay ley, F.R.S., &c., Hon. Mem., 

 was read by the Rev. T. P. Kirkman, entitled, " On the 

 ^ faced Polyacrons, in reference to the Problem of the Enu- 

 meration of Polyhedra." 



