10 



RECORD AND DISCUSSION OF TEMPERATURES. 



Temperatdre of the Air in Shade observed at Van Rensselaer Harbor, 



In December, 1853, in Lat. 78° 3T', Long. 70° 53' W. of Greenwich. 



Expressed in degrees of Fahrenheit's scale. At meteorological observatory on floe.' 



Hour. 



ih. 



2 

 3 



4 



5 



6 



7 



8 



9 

 10 

 11 

 Noon 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 Midn't 



-16.5 

 20.5 

 23.5 

 26.6 

 29.5 

 31.0 

 32.5* 

 31.7 

 28.0 

 32.0 

 30.5 

 24.5 

 20.9 

 23.0 

 23.1 

 22.2 

 23.0t 

 23.0 

 20.5 

 29.5 

 23.0 

 23.5 

 27.0 

 -31.0 



3d. 



4th. 



-29.5 

 33.4 

 35.0 

 34.6 



28.2 

 27.3 

 24.7 

 25.2 

 24.5 

 26.0 

 24.5 

 22.5 

 21.0 

 22.5 

 24.5 

 26.0 

 25.5 

 26.0 

 25.6 

 28.5 

 26.8 

 26.8 

 26.8 

 -30.4 



Means 



25.69 —26.90 



-33.5 

 31.5 

 31.5 

 29.7 

 29.0 

 26.5 

 26.5 

 24.5 

 25.5 

 25.5 

 26.0 

 26.0 

 27.1 

 26.1 

 26.2 

 27.7 

 29.5 

 30.5 

 31.0 

 32.5 

 31.0 

 28.5 

 27.5 

 -26.0 



—25.0 

 26.5 

 26.4 

 27.3 

 26.4 

 25.0 

 23.0 

 22.2 

 264 

 23.6 

 23.0 

 20.8 

 12.0 

 12.0 

 12.5 

 14.5 

 18.0 

 18.5 

 19.0 

 16.5 

 10.9 

 12.1 

 11.0 



- 9.5 



—28.30 -19.25 



— 8.5 

 9.5 

 13.5 

 14.0 

 15.5 

 21.0 

 17.0 

 20.5 

 24.0 

 26.5 

 28.4 

 28.5 

 27.4 

 27.2 

 28.2 

 27.2 

 32.5 

 33.5 

 33.5 

 31.5 

 32.5 

 31.0 

 30.8 



-29.5 



-24.65 



-30.5 

 29.5 

 27.0 

 27.0 

 23.8 

 23.4 

 26.1 

 29.2 

 31.5 

 32.0 

 32.7 

 33.2 

 33.7 

 33.7 

 33.5 

 33.0 

 33.0 

 33.5 

 33.0 

 32.5 

 32.8 

 31.5 

 30.0 

 -26.4 



7th. 



Sth. 



9th. 



—30.52 



-26.4 

 26.0 

 26.0 

 24.0 

 32.5 

 31.0 

 31.6 

 32.0 

 37.0 

 38.3 

 37.8 

 38.5 

 36.9 

 37.8 

 40.8 

 42.0 

 38.5 

 37.1 

 39.5 

 41.0 

 39.5 

 38.0 

 38.5 

 -40.0 



—39.5 

 39.5 

 39.5 

 41.0 

 41.5 

 43.2 

 41.9 

 42.5 

 41.5 

 42.5 

 42.0 

 43.5 

 43.5 

 43.9 

 43.9 

 44.0 

 44.0 

 44.0 

 44.0 

 44.0 

 39.4 

 35.8 

 36.1 



-35.0 



—35.0 

 34.0 

 34.0 

 34.5 

 34.8 

 36.0 

 33.0 

 31.5 

 34.6 

 34.0 

 34.5 

 31.5 

 28.8 

 25.4 

 26.8 

 26.3 

 24.5 

 26.5 

 24.5 

 24.0 

 20.5 

 21.5 

 21.8 



-23.5 



—26.0 

 25.5 

 24.5 

 23.5 

 22.1 

 19.6 

 19.0 

 17.8 

 15.0 

 15.0 

 12.5 

 10.5 

 10.3 

 10.5 

 10.0 

 9.5 

 10.5 

 12.2 

 12^4 

 11.0 

 10.8 

 11.2 

 13.0 



-13.2 



35.45 -^1.49 '—29.23 —15.23 



-13.5 

 13.5 

 15.5 

 18.5 

 21.2 

 23.1 

 23.0 

 20.5 

 20.0 

 23.8 

 24.6 

 26.0 

 26.4 

 27.4 

 27.9 

 27.9 

 30.5 

 31.0 

 29.5 

 28.5 

 31.0 

 31.0 

 29.5 



-28.5 



12th. 



—30.0 

 28.5 

 29.5 

 29.6 

 26.6 

 23.9 

 24.9 

 25.4 

 26.0 

 25.8 

 26.5 

 26.5 

 26.5 

 27.5 

 27.0 

 25.5 

 25.3 

 26.3 

 28.3 

 28.6 

 29.2 

 29.5 

 28.2 



-27.8 



loth. 



—24.681-27.20 



—27.5 



28.7 

 29.5 

 29.5 

 27.0 

 27.5 

 29.0 

 30.5 

 30.0 

 31.5 

 34.8 

 34.5 

 35.0 

 35.4 

 34.0 

 35.2 

 37.0 

 38.0 

 39.5 

 38.5 

 36.5 

 35.5 

 37.0 

 -37.5 



—39.0 

 39.5 

 39.4 

 39.5 

 38.2 

 39.0 

 37.4 

 39.4 

 40.0 

 39.8 

 40.5 

 40.5 

 39.5 

 38.5 

 37.5 

 40.0 

 42.6 

 42.0 

 41.5 

 41.8 

 40.4 

 41.3 

 41.0 



—41.5 



—42.5 

 42.5 

 43.5 

 43.5 

 41.0 

 42.5 

 41.0 

 41.5 

 42.5 

 42.9 

 43.0 

 42.5 

 41.6 

 41.6 

 41.4 

 39.4 

 39.5 

 39.5 

 40.5 

 39.0 

 39.8 

 37.5 

 37.5 

 38.0 



-39.5 

 40.4 

 42.5 

 41.5 

 40.2 

 40.5 

 40.4 

 42.0 

 42.5 

 42.7 

 41.5 

 41.5 

 42.0 

 39.5 

 40.5 

 40,5 

 34.5 

 37.5 

 41.5 

 41.0 

 411.2 

 40.9 

 41.0 

 42.2 



-33.30 —39.99 —41.01—40.69 



I I 



Hoar. 



Ih. 



2 



3 



4 



5 



6 



7 



8 



9 

 10 

 11 

 Noon 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 Midn't 



—41.5 

 42.3 

 43.5 

 42.3 

 43.4 

 42.5 

 42.0 

 37.5 

 39.0 

 39.2 

 39.5 

 41.0 

 40.5 

 41.0 

 42.0 

 38.4 

 41.0 

 41.5 

 41.5 

 41.5 

 38.7 

 38.7 

 38.5 



—37.5 



ISth. 



19th. 



—39.5 

 38.0 

 36.0 

 37.8 

 36.6 

 32.8 

 31.9 

 29.5 

 28.5 

 27.5 

 25.8 

 25.0 

 25.5 

 24.5 

 26.5 

 27.5 

 25.5 

 25.2 

 25.4 

 25.0 

 22.8 

 22.0 

 23.0 



-22.6 



Means — 40.60 



—28.52 



-21.5 

 21.0 

 20.5 

 19.5 

 18.8 

 19.8 

 17.5 

 17.9 

 16.4 

 16.7 

 16.8 

 16.5 

 18.0 

 21.7 

 23.3 

 26.5 

 23.6 

 24.6 

 28.2 

 30.1 

 34.0 

 34.9 

 35.0 



-30.5 



20th. 



-30.0 

 30.5 

 29.5 

 29.5 

 27.7 

 31.6 

 34.2 

 35.0 

 31.0 

 32.4 

 33.5 

 30.0 

 35.3 

 34.3 

 36.6 

 36.5 

 36.2 

 38.2 

 40.0 

 40.2 

 33.6 

 30.8 

 32.5 



-32.8 



21st. 



-35.0 

 33.5 

 33.8 

 33.0 

 34.8 

 31.0 

 31.1 

 32.0 

 32.0 

 31.6 

 31.0 

 32.3 

 34.5 

 37.8 

 37.5 

 39.5' 

 39.9 

 40.0 

 39.4 

 37.0 

 28.6 

 28.5 

 35.0 



-31.6 



-34.8 

 35.6 

 36.0 

 36.8 

 36.8 

 37.5 

 38.0 

 37.2 

 37.3 

 37.5 

 37.2 

 33.9 

 33.2 

 32.0 

 35.0 

 35.5 

 39.0 

 32.8 

 36.5 

 34.6 

 31.0 

 31.0 

 30.2 



-29.0 



23d. 



23.05 -33.41 —34.18 —34.93 



—28.7 

 27.5 

 21.5 

 18.0 

 11.5 

 11.9 

 11.1 

 16.0 

 14.0 

 12.3 

 12.4 

 11.5 

 9.7 

 10.3 

 12.0 

 15.0 

 14.8 

 14.0 

 12.1 

 12.2 

 13.0 

 12.6 

 12.2 

 12.0 



-13.5 

 13.5 

 14.8 

 15.5 

 11.2 

 11.4 

 10.8 

 11.5 

 11.6 

 12.2 

 12.0 

 12.3 

 12.3 

 12.2 

 12.0 

 12.0 

 10.2 

 10.1 

 10.1 

 11.0 

 13.0 

 13.0 

 13.0 



-13.0 



-19.0 

 19.7 

 19.5 

 20.0 

 18.0 

 19.4 

 20.8 

 22.5 

 23.3 

 22.2 

 23.4 

 23.6 

 28.5 

 28.7 

 29.0 

 30.1 

 29.0 

 29.5 

 29.1 

 27.4 

 26.0 

 27.5 

 26.8 

 -26.5 



26th. 



—14.43—12.18 —24.56 



-26.5 

 23.0 

 27.5 

 25.6 

 23.2 

 23.2 

 22.5 

 22.5 

 21.6 

 21.0 

 21.3 

 21.5 

 20.3 

 20.4 

 20.5 

 19.5 

 19.2 

 19.0 

 19.0 

 18.5 

 18.5 

 17.8 

 16.8 



-16.5 



-21.06 



—14.5 

 14.0 

 13.5 

 13.0 

 12.2 

 13.9 

 14.4 

 13.3 

 12.5 

 12.5 

 12.6 

 12.0 

 12.0 

 11.8 

 11.2 

 10.2 

 9.1 

 8.4 

 7.5 

 5.2 

 4.6 

 3.5 

 5.8 



- 6.4 



-13.0 



-13.0 

 -13.5 

 -15.8 

 -16.5 

 -16.0 

 - 8.7 



■ 7.0 

 . 8.5 



■ 8.5 

 . 9.8 



■ 9.0 

 9.5 



11.0 

 7.7 

 6.5 

 4.9 

 4.2 

 2.5 

 2.0 

 1.1 

 1.8 

 2.2 

 1.8 



—10.59'-!- 8.10 



— 0.8 

 0.8 



— 0.8 

 0.8 



+ 1.4 



— 0.5 



— 1.5 



— 2.4 



— 6.6 

 8.0 



12.5 



—14.5 



—16.3 



16.8 



16.9 



17.2 



—13.6 



12.4 



15.1 



16.4 



—18.0 



—20.2 



—18.2 



—18.8 



30th. 



31sl. 



—10.32 



Means. 



—17.39 



— 8.40 



25.35 

 —25.32 

 —25.64 



25.53 

 —24.64 

 —24.83 



24.73 



24.99 

 -25.28 

 —25.67 

 —25.79 

 —25.29 

 —24.93 

 —25.05 

 —25.67 

 —26.01 

 —26.01 

 —26.20 

 —26.73 

 —26.64 

 —25.44 

 —25.09 

 -25.18 

 -24.95 



-25.46 



thl llTer inslrument'"^ ^^ *"' "'"''''"*^ ''^''^^"^ ^^^^' ''^^^^' ^'*''''° ~^^'-° '"'"^ ^*°-" "^'"^^^ ^^ ^P'"' '^^""^^''"^ (^>' °' '^°'''^ ^^ 



* Temperature falling 21°.S in eight hours. ,p . j ,, ,«, 



rio^ 9nn 4« Qi T> nT ..t t Corrected by 10'. 



Dec. 20th. At 3, P. M the temperature at the floe was -36".5 ; the party at skirts of bay obtained, for the same hour, -43\0. 

 Dec. 2-d Maximum depression of the sun below the horizon, at noon and for the upper limb, ] 1° 7'. 



