[ 322 ] 



Monthly Mean Pressure, Temperature, and Dew Point, &c. of 1830 ; deduced from the Observations 

 recorded in the preceding Journal. 



March 



May.. 



July . . 

 Aug. . 



30.78728. 



J29. 

 30.61429. 



8329. 

 30.32829. 

 30.15029. 

 30.40729. 

 3o-303,29- 

 30.411.29, 

 30.55029. 

 30.45929 

 30. 446*28 



72030.043 

 381 29.937 

 498130. 1 16 

 246*29.800 

 31629.878 

 415 29.834 

 72429.940 

 29.889 

 29* 793 



685 



3i'2 9 .856 

 91029.646 



30. o52po. 036:30. 041 30-043 

 93829.950 29.936 29.941 

 128jo.10930.105 30 



793l29-777 l 2 9- 820 | 



30.42929.29429.914 



I Night. 



29.796 



29.87929.87929.880 29.879 



9-«3 



29.83029.831 29.837 

 9.95729.941 29.934 

 29.9002 



9.787I29.800 29.793 

 30.239 

 29.854 



29.654 29. 641 129. 644 29.646 



29.913l29.919j29.9u 29.914 



70.827.349.3 



32.034. 

 36.040. 

 + 6 -3 55' 

 50.5 57 



55- 



5 8. 9*64 

 65.971. 

 60.567. 

 55.961 

 50.658 

 43- 6 5o 

 34-93 8 



7-31 



4 37-4 

 21 51.3 

 12 56. 

 26 61. 

 32 ^4.8 

 73-° 



91.551.441.020.3^3-7 



Scale of the Winds. 



* 6 -9 j 49-2 I 45.7 I 



.,35 

 2.64 

 5^6 



.25 j 959 



.378 j 3.43 j 878 j 568 



■ I* 



I 5 



