250 



Arctic Explorations. 



r 



standards it descended after freezing as low as - 44^. This result is in 

 accordance with that obtained by Sir Edward Belcher, whose experiments 

 go even further than my own, — the mercury having been observed by 



him to descend as low as 46*^ below zero " — Second [Expedition, pp. 405, 

 406. 



Synopsis of mean monthly readings of atmospJierie temperature and pressure y and 



of observed maxima and minima tmjiperatures. 



Date. 



1853, June, 

 July 



Temperature of Air. 



Mean. 



August 



yeptember. , , , 



October 



November « , , , 

 December . . . , 



1 8 54r, January . 

 February 



March . . . 



April *.•..,.. 

 May 



June -....,.., 



July ., 



August, •..,.. 



September. . .. 



October 



Ifovember . • . . 



December , , , . 



1855, January ...... 



February 



March 



April 



Autumn, (1853) . .. . 

 Winter, (1853-64)... 



Spring, (1854) 



Summer, (1854), 



Autumn, (1854) . . , . 

 Winter, (1854-55).,, 



o 



+ 48-63 

 4- 31-83 

 + 33-41 

 + 17-16 

 + 0-55 



- 23-01 



- 25-99 



- 30-24 



- 83-60 



- S8'09 



- 8-60 

 ■f 12-89 

 + 29-23 

 + 38-40 

 + 3135 

 + 9-81 



- 10-54 



- 23-03 



- 37-'74 



- 28-61 



- 21-21 



- 33-97 



- 14-00 



- 1-77 



- 29-94 



- 11-27 



+ 32-99 



- 7-92 

 -29-19 



Maximum. I Minimum. 



o 



+ 70-0 

 + 51-0 



+ 46-0 

 + 32-0 



+ 17-8 

 + 0-2 

 + 15-8 

 + 11-0 

 -11-3 

 + 0-9 

 + 14-3 

 + 39-4 

 + 41-9 

 + 63-9 

 + 48'9 

 + 26-6 

 + 22-9 



+ 4-3 

 - 8-4 

 + 25-2 

 + 19-6 

 + 2-3 

 + 8-9 



+ 32 

 + 15-8 

 + 39-4 

 + 53-9 



+ 26-6 

 + 25-2 



o 



+ 35-0 

 + 300 



+ 250 



- 2-2 



-23-7 



-43-2 



-45-7 

 -59-9 



-68-0 

 -55-6 

 -43-0 



- 8-7 



+ 17-7 

 + 27-6 



+ 19-1 



- 8-9 



-410 



-49-9 



-61-4 



-69-3 

 -63-9 

 -56-1 

 -42-3 



-43-2 



-68-0 

 -55-6 



+ 17-7 

 -49-9 



'69-3 



Barometer. 



Attached 



Ther- 

 mometer. 



Inch. 



29-890 



29-727 

 29-661 



29-678 



29-801 

 29-726 



29-842 

 29-461 

 29-642 

 29-760 

 29-981 



29-970 

 29-780 



29*784 

 29-711 



29-682 



29-743 

 29-855 

 29*728 

 30-141 

 30-095 



29-795 



29-904 



29-735 

 29-648 

 29-904 

 29-758 

 29-760 

 29-988 



o 



+55-73 

 68-83 

 68-92 

 55-86 

 69-76 

 34-35 

 36-36 

 2966 

 24*69 

 14-52 

 29-71 



51-62 

 53-98 



46-67 

 37-66 

 41-22 

 51-60 

 51-98 

 49-98 



49-31 

 51-88 



67-17 

 69-93 



53-32 

 30-24 

 31-95 

 46-10 

 48-27 

 60-39 



» 



Difference, (Summer and Winter,) 62-93^ 



warmest and coldest m'nth. 76-40 



« 



M 



:um 



Mean of the year 1854. 



Temp, of Air, Barometer. Attached Therm 



-5-01=^ 29-7581 inch. +40-27'' 



The maximum of temperature was +53*9°, and occurred on the 4th of July^ 1864. 



The minimum in 1854 was -68'0°, and occmred on the 5th of February. 



^1855 it was -6d-'^^ on the 7th of January. 



From September, 1853, to April, 1856, (inclusive,) the observations were made 

 at nearly the same place; hence the means of the same months in 1353, 1854, and 

 1866, would be combined for the mean annual temperature and the mean annual 

 height of barometer giyen iu the following table. 



