[ 506 ] 



Monthly Mean Pressure, Temperature, and Dew Point, &c. of 1839; deduced from the Observations recorded 

 in the preceding Journal. 



Min. Med. 



jan. .; 3 o. 5 73 29, 

 Feb. . 30.559*9. 

 March'30.238 29, 

 April | 3 o.55oj2 9 . 

 May . '30.248 29, 

 June. ! 3 o.2 9 i 29, 

 July J30.30429. 



Sept. 30.131L9. 

 Oct. . '30.480 29. 



N0V..| 3 0.272 28. 



Dec. . 30.508 29. 



03929.918 



467I30.0C 



409J30.094 

 357,29-978 



29829.913 

 17230.003 

 06129.677 

 44730.017 

 978 29.699 

 19029. 73 8 ! 



I I Observ 



■n. I Noon. | Night. tions, 



•534 2 9-938,29 

 .092 29.99029, 



'•977 29.824|2 9< 



.141 30.09030. 

 .891 29.98329 



.882 29.904129 

 .006 29.917(29 

 .153 30.oo 7 j 2 9 



•033 30 



.294 29.70I|2 9 , 



.318 29.74829, 



898 29.91429.916 



. 998,30.009 29.999 

 .81729.82929.823 



086 30. 105I30.094 



.962J29.97sj29.974 



.889 29.922 29.905 

 .906^9. 910 29. 911 

 .997^30.005 30.003 

 .67329. 693 29.679 

 .006j0.024l30.017 

 .69629. 689129. 695 

 73329-72629.735 



30.373129. 257^9. 8 9 6 ( 1. 116 29.898 29.888 29. 9 oo ! 29. 895 



37.85 35 

 40.4037 

 41-95 39 

 44 -4+' 44' 

 52.45 5'- 



61.74k. 

 61.41 60. 

 57-7» 55- 

 I51.40 48. 

 [45-56 45- 

 40.3038. 



Night. Obsei 



I936.80 37-97 

 71,38. 92 40.36 

 0939-5I 4I-70 

 I6j41.0045.05 

 90.48.55 53-97 

 io^. 2662. 63 

 8759-2964 

 5158.3562. 

 5654-4657-98 

 4548.0051.03 

 9945-33 46.82 

 4539.5140.55 



.50 28.66 49-6i , 48.54 55-4»47-25 5o.4o83.58 49.25 l 5i.33 



1839- 



Hygrometer indicating Dew Point 







N. 







Scale 



of the Winds. 







Rain. 



~ 



Mean Dew Point at j Mean 



F^ceof 



Mean 



Mean 

 Moisture! 



Least 



„ 



E. 





S. | S.W. 



w. 



N.W. 



Days. 



In. Pf- 



j ""j ! Dew 



Morn. Noon. Night. Point - 





3S-I9 38.74 36.74 36.89 



•253 



I.08 



962 



676 ! 





3 



° 















Feb. . 



36.78 41.40! 38.78 38.99 



.272 





957 



634 





3 







'1 \ 





3 





z.19 



March 



3 8 -o3 39-55 39.09 38.89 



.271 





903 



488 





8 





5 



: : 



5 



3 





i-95 



April 



39.90' 39.80 40.27: 39.99 



.280 



3 



823 



478 





6 



\ 





1 4 





3 





1.46 



May. 



45-39; 46.42 46.74 46.18 



•352 



7.79 



766 



346 















3 





0.82 



June. 



58.57 60.10 56.36' 58.34 



.531 



4.29 



874 



519 





i 



4 



3 













July. 



59.64 60.80 58.39 59.61 





4.67 



862 



401 





















Aug. 



57- 74 1 57-8o 58.06: 57.82 





4-6! 



864 



457 











8 j 15 

 3 8 



8 









Sept. 



55-10 59.10 54.20 56.13 







941 



610 











11 13 





j 





3-9 2 





48.42 51.87 47.87 49.39 





1.64 



946 



7H 













; 











45.06; 4 8.66j 45. 33 1 46.35 



| .356 



0.47 



987 



734 





4 







: \ 









4-37 



Dec. . 



38.35' 42-13 39-48; 39-9^ 



| .278 



0.57 



972 



772 













; 











46.51 48.86 46.77 47.38 



-379 



3.0. 



904 



569 



17 





29 64 79 



!4 



j6 



565 



28.30 



