374 



Miscellanies. 



Average proportion of easterly winds in 1000 for five years, 346 



Do. of westerly winds " for same period, 654 



The westerly surface winds being to the easterly nearly as two to one. 



Proportion of E. winds in the region of clouds, for five years, 76 

 Do. of W. winds, " " for same period, 924 



The westerly winds being to the easterly, in the region of clouds, du- 

 ring this period, in the proportion o{ nearly twelve to one. 



From the foregoing synopsis of observations it appears that the main 

 current of atmosphere prevailing in this region is from the southwest- 

 ern or western quarter. This may account for the general uniformity 

 of the course pursued by our storms, of almost every description. 



Table of the monthly mean height of the barometer in English inches^ 

 for each of the five daily observations recorded during the year 

 1837 ; with the average results of the last five years, 1837 included. 



1837. 



January, 



February, 



March, . 



April, 



May, 



June, 



July, 



August, . 



September, 



October, 



November, 



December, 



Averau^e resuhs, 



5 S< 



29.855 

 30.022 

 30.210 

 29.924 

 30.035 

 29.95(J 

 30.01 1 

 30.086 

 30.262 

 30.259 

 30.160 

 30.167 



3t).087 



29.908i29.854 

 30 039j30.014 

 30.24530.210 

 29.949 29.895 

 30.075 30.04! 

 29.960 29.950 

 30.027 30.002 

 30.094 30.075 

 30.282 30.243 

 30.27230.239 

 30.193 30.15(1 

 30.193130. 144 



:m 1(^3 30.069 



for five years, 30.097 30.1 18 30.0SH 30. 0b3;30. 105 30.098 



29.b74 

 30.021 

 30.199 

 29.907 

 30.032 

 29.931 

 29.985 

 30.068 

 30.234 

 30.281 

 30.168 

 30.181 



29.890 

 30.035 

 30.225 

 29.960 



29.951 



5g 



29.876 

 30.026 

 30.218 

 29.927 



30.05830.048 



29.948 



30.005 30.006 

 30.087t30.082 

 30.25630.255 

 30.273[30.265 

 30.189 30.173 

 .30.214 30.180 

 30085 



30.073 30.095 



In the foregoing table no correction is made t'or temperature or for 

 variation in the surface level of the cistern. The annual mean of the 

 attached thermometer is near 6S° Fahr., and the capacity of the tube 

 to that of the cistern as one to forty. The capillarity of the tube is 

 provided for in the zero adjustment of the instrument, and its position 

 is about ten feet above the ordinary sea level. 



