234 METEOEOLOGICAL REPORT, 1868, 



.(the highest reading of the year) on the 18th, at 9 a.m., then 

 gradually falling to 30-163 on the 20th, and then suddenly to 

 28*760 on the 22nd, from v/hence it rose again suddenly for two 

 days and then more gradually. On the daj^^ of greatest depres- 

 sion (the 22nd) shocks of an earthquake were felt at Waterloo, 

 near Liverpool. 



Mean height of barometer, 29'999 inches. 



Mean temperature of month 39'52^. 



Ditto of thirteen years 41-10°. 



Decrease of 1868 1-58°. 



Mean direction of wind, E., 26° N. 



Kain on twelve days : amount, 2-46 inches. 



Mean height of river 2-91 feet. 



Darlington. — A very changeable month. A day or two fine 

 and then rain. The closing days were fine. 



Lunar Halos were seen at Wallington on the 29th ; at North 

 Shields on the 25th and 28th ; at Seaham Harbour on the 25th. 



Solar Halos were seen at Byrness on the 29th ; at Walling- 

 ton on the 20th. 



Lightning was seen, but thunder was not heard, at Walling- 

 ton on the 5th ; at Alston on the 3rd and 13th. 



Thunder was heard, but lightning was not seen, at Greta 

 Bridge on the 10th. 



Hail fell at North Shields on the 4th, 7th, and 9th ; at Ack- 

 1am Hall, near Middlesbro', on the 8th, 9th, and 10th. 



Snow or Sleet fell at North Sunderland on the 9th ; at Wal- 

 lington on the 6th ; at Horsley, near Wylam, on the 6th ; at 

 North Shields on the 6th and 9th ; at Whitley on the 6th, 7th, 

 and 8th ; at Seaham Harbour on the 6th, 7th, and 9th ; at Ack- 

 1am, near Middlesbro', on the 8th, 9th, and 10th; at Greta 

 Bridge on the 7th and 9th. 



