C 554 ] 



Monthly Mean Pressure, Temperature, and Dew Point, &c. of 1840; deduced from the Observations recorded 

 in the preceding Journal. 



(J " t' : v j 



01»<r 



Jan. . 30.588 28. 

 Feb. . 3 o.66i;28. 

 March 30. 726^29. 

 April 30.41629, 



Ma y • 30-39329- 



June. 30.195 29. 

 July . 30.26929. 



Aug. 30.22 3 '29. 



Sept. 130.19628. 

 Oct. . 30.54929. 

 Nov.. J30. 43328. 

 Dec. . 30.644 29. 



742 29.83 

 59729.954 

 82330.273 



480*0.080 ' 

 42c 29.90^ , 



65929.966^ 



43429.839 , 



16929.884' 



126 29.927' 

 66929.602 

 229 30. 109 



.846 29. 

 :.o64|2 9 . 

 1.903 30. 

 1.936 30. ( 

 >. 9 68 29 

 '•536,29 

 ..835 29 

 .054 29 

 .452 29 

 .423 ,29 

 .764 29 

 •41S 3o 



82729.: 

 94229, 

 27* 3° 

 07830. 

 91429 

 9S4 29 

 851.29 

 89229 



•2438-5443 

 .3037-69 4 

 .7037-0344 

 .83 48.23 

 .1656.1664 

 .9461 .86 68, 

 .06 61 .35 67 



• 64 43- 0 3 53 

 .1641.40 47 



• oo'3i.58 36 



4538.1640.05 

 65 37-68 39-34 

 6i 35-35 38.99 

 2642.90 51 . 13 

 52.3257-60 

 57.7362.56 

 58 56.03 61 .65 

 0657.8364.08 

 8650.0354.37 

 6141.90 46.18 

 73 41-93 43-68 

 0930.31 32-66 



;i 4 .f 

 61.06. 

 66.25 

 3+ 66.76 

 70.46 

 59-5+ 



•45829.17429.9271 1.284 29.93229.92529.92 



926 69 .66 27 . 59 48 . 78 47 . 62 55 . 2745 . 1 8 49 . 36 84 . 08 5 1 . 25 49 









Hygro 





dicating Dew Point 







Scale of the Winds. 



Rain. 













































Dew Point at 



Mean 







Mean 



Least 























Months. 



Morn. 





Night. 



De«v 



Point. 



Forceof 



Drfness. 



degree of 



M.lmre. 



N. 



N. E. 



E. 



S.E. 





s.w. 





N.W. 



Days. 



In. Pts. 



Jan. ■ 



37.96 



42. c- 



37.9o 



39-3' 



.272 



O.74 



971 



712 



: 



3 







6 



7 









2.48 



Feb. . 



35-97 



39 -H 



36.41 



37-21 



.257 



2.13 



937 



658 







8 













29 





March 



34.90 



34-68 



33.68 



34-42 



.235 



4-57 



864 



369 







6 









3 









April 



S3 



42.66 



40.43 



42.57 



.3IO 



8.56 



747 



365 



: 





6 





3 





4 



3 



30 



0.06 







52.10 



50.39 



51.55 



.421 







404 







6 







7 



5 







2.18 



June. 



57.16 



55-17 



55-53 



55-95 



•491 



6.61 



811 



450 













9 



13 



4 



30 



1.48 



July. 



56.00 



53.71 



54-03 



54.58 



.469 



7.07 



797 



404 

















5 



31 



1 68 



Aug. 



58.32 



59.48 



56.38 



58.06 



.490 



6.02 





324 





, 3 









7 







31 



1.62 



Sept. 



50.56 



51.20 



49.87 



50.54 



•407 



3.83 



875 



457 













7 









2.45 



Oct. 



42.36 



47.48 



41.74 



43-86 



.326 



2.32 



923 



593 















7 



8 





i-35 



Nov. 



41.27 



46.40 



41.93 



43.20 



.318 



0.48 



981 



74i 





6 



3 





5 





3 





30 



3-59 



Dec. 



30.48 



53-87 



30.31 



31.55 







959 



606 













3 





3 



3' 



0.45 



Aver. 



45 • 1 S 



'r>-5 



44.05 



45 - 2 3 



.350 



4.12 | 833 



507 



29 



46 



47 





38 



78 



B4 





366 



18.87 



