[ 195 ] 



DECEMBER. 



The first part of this month, though dull and hazy, was 

 nevertheless seasonable and mild. On the morning of the 

 14th the Fog was so very dense that coachmen and others 

 were obliged to lead their horses ; towards noon it cleared 

 off, but at night became as bad as in the morning. The 

 mails were delayed upwards of an hour by it. The 15th 

 was much the same as the 14th, but not quite so dense. 

 Snow fell on the 18th and 21st to about 2 inches in depth, 

 and the Frost set in with severity and continued to the 

 end of the month. The Barometer was upon the whole 

 steady and high. 



Mean Pressure from the 3 daily observations 30 . 163 inches 



Temperature Ditto 34°- 10 



Dew Point Ditto 3 2° 48 



Degree of Dryness Ditto i°.6z 



■ Degree of Moisture Ditto 931 



Force of Vapour Ditto 0.216 inch. 



Least observed degree of Dryness 759 



Maximum Temperature in Shade 51 



Minimum Temperature in ditto 15° 



Maximum Temperature in the Sun 6o° 



Minimum of Terrestrial Radiation 1 2 



Mean Temperature of External Air 33°-36 



Winds. 



North 3 days I N. East 10 days 



East 7 . . S. East 4 • • 



