X. 



587 



North America. — Montreal, Continued. 



Corrections to be applied to the Means of the Hours of Observation to obtain the true 

 Mean Temperatures of the respective Days, Months, and of the Year. 



Dejni^es of Fahrenheit. 



Hour, j Aug. I Sept. 



A.M.I 



5.03 



5.99 

 6.44 

 2.10 



-0.58 



3! 



5! 



7I 



]l"-3.6i:-2.20 



4.92 

 5.20 

 5.43 

 3.47 

 0.73 



P.M.I -6.61i-5.12 

 3 -7.34-6.65 



5 [! -5.47: -5.83 



-1.45 

 1.58 

 3.10 



-0.62 

 1.32 

 3.02 



Oct. 



2.53! 

 3.61 1 



4.45! 

 3.611 

 0.771 



-2.73 -1.35-0.49 



Dee. I Jan. Feb. | March. April. 



1.43 

 1.30 



1.87 



1.98 



1.16 



-1 .08 



1.61 

 2.72 

 3.95 

 5.22 

 3.99 



4.38 

 5.18 

 6.84 

 7.07 

 2.96 



-0.17-2.51 



-5.41 -3.47 -2.38 -1 .49 -4. 80 J -7.41 

 -5.80 -3.22 -2.78 -2.S6 | -6.08 | -9.03 

 -3.15 -1.19 |-1.44 -0.63 [-4.12 I -6.48 

 -1 .00 -0.44 -0.70 -0.60 -1.23 j -2.40 

 0.32 0.13-0.71-0.66-0.96 -0.75 

 2.47 i 1.481 0.22 1 0.61 0.24 1.78 



Mean. 169.69 i 57.53 44.70 32.76 1 15.91 18.96 1 14.52 22.50 34.47 51.33 65.08:67.42 1141.24 



3.12 

 5.14 

 6.54 

 3.84 

 0.71 

 -2.48 



-4.93 

 -6.33 

 -5.63 

 -2.93 

 0.44 

 2.06 



May. 



4.85 

 6.51 

 6.56 

 3.56 

 0.50 

 -2.79 



-5.78 

 -6.46 

 -6.62 

 -3.50 

 0.61 

 2.52 



Year. 



-3.17 -2.88 

 1.58 1.17 

 3.55 3.39 



3.30 

 4.25 

 5.05 

 3.56 

 1.02 

 -2.17 



-4.95 

 -5.91 

 -4.43 

 -1.74 



0.34 

 2.02 



XI. 



North America. — Sitka. Lat. 57° 3' N. Long. 135° 18' W. Gr. — Dove. 



Degrees of Reaumur. 



The numbers without sign must be added : those with the sign — must be subtracted. 



23 



