26 



Mb. J. Bkyce on the Low J'einioeratures 



correspond with ;i maximum of pressure, or vice v&rsd. We have no 

 data, however, in our returns, for separating the effects of the dry air 

 and aqueous vapour. 



In the following tahle the minima temperatures are brought together 

 for the sake of easier comparison. Those temperatures only are given 

 which reach 20° F., or under. The elevation of several of the stations 

 above the sea level is annexed : — 



At Orton, on February 1st and 27th, the temperature was 4° ; on the 

 5th, 1° ; on the 9th, 6° ; on the 12th, 2° ; on the 26th and 28th, 0°. 

 Here, therefore, and at Chiswick, near London, the temperatui'es were 

 lower than at any other of the stations, except those in Aberdeen and 

 Moray shires. The yearly volume, issued from the Eadcliffe Observatory 

 by Mr. Manuel J. Johnson, and the Records of the Meteorological 

 Society of England, show that at Oxford and various stations through- 

 out England, the temperatures of the period were considerably below 

 the mean of twenty-five years. The minima of February at Oxford 

 were 7°-5 and 9°-5 on the 16th and 17th, exactly coinciding with the 

 epochs of lowest temperature at almost all our stations — minimum at 

 Huggate, Yorkshire, 13° on 18th February ; at Torquay, 27°, day not 

 named. The prevailing low temperatures over so wide an area are very 

 I'cmarkable,, and probably much lower than any experienced for even a 

 much longer period than twenty-five years. There was more or less 

 snow at all the stations during the month of February ; and with the 



