Foofs Meteorological Journal. 



171 



t. Meteorological Journal, with miscellaneous remarks, by Dr. 

 Lyman Foot, of the American army. 



Cantonement Brady, (Sault de St. Marie, ) 

 Lake Superior.) \ 



JAWUART, 1823. 



Thermom, 

 Hour. 



712 9 



10 

 11 



12 



13 



14 



15 



16 



17 



1 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



14 

 20 

 12 

 10 

 -6 

 20 

 31 

 28 

 25 

 20 

 22 

 20 

 -4 



28 10 

 42 13 



28 

 30 

 28 

 20 

 29 

 25! 

 22I 

 4I 



Weather. 



Snow, 

 do. 

 do. 

 do. 



Snow. 



Snow &! rain. 



Snow. 



Snow. 



do. 



do. 

 [ do. 

 I do. 



do. 





I had no thermometer before the 

 6th of January. The weather here 

 has been very cold. The sudden 

 changes are somewhat remarka- 

 ble. Every spot in the river is 

 closed except the falls, over which 

 during- these cold nights hangs a 

 dense fog. 



Every severe cold night was sure 

 to be followed by a fall of snow. It 

 would often sift down (if I may so 

 say) in very fine scales and stars, ap. 

 parently without any dense cloud, 

 but the whole atmosphere seemed to 

 be filled with fine flakes of snow. It 

 would continue to snow thus for an 

 hour or two, and the atmosphere be- 

 come clear. It would then continue 

 comparitively mild through the day, 

 Just at sun-down the thermometer 

 would begin to sink, and the night 

 be clear and cold till just before day 

 It would then become hazy, and the 

 same thing take place the following 

 day. The evaporation from the falls 

 no doubt is very great. Thus the 

 atmosphere becomes surcharged with 

 vapour, which congeals and gives 

 all its latent heat to the surrounding 



