1 08 R ECORD A N D R E D U C T 1 X O F T HE OBSERVATIONS, ETC. 



Din- 

 of the wind. 



N 



N. E. 

 E. 



S E. . 

 s. 



s. W. 

 W. . 

 N. W. 



Culm . 



+ 0.035 



+ 0.012 



+ 0.005 



The maximum effect of any one wind (or calm) does not exceed 0.04 of an inch, 

 and, considering the short period of observation, and the probable irregularity in 

 the phenomenon itself, the above figures for any one locality show a tolerable degree 

 of progression. During calms the barometer is higher on the average 0.017 inch. 



The above tabular quantities (after omitting the calms and making the algebraic 

 sum of the results for each place equal zero) are contained in the expressions — 



Inches. 



For Baffin Bay @ = + 0.015 sin (0 + 27°) 



For Fort Kennedy £ = + 0.015 sin (6 + 181) 

 For Van Rensselaer /3 = + 0.018 sin (0 + 24G), 



The angle 6 counting from the north. These expressions give nearly the same 

 amount (0.016 inches) of elevating and depressing effect of the winds on the 

 average, but do not correspond in the direction; thus, in Baffin Bay, according to 

 tlic above, the barometer is higher with the wind from the N., N. E., and E., and 

 lower with the wind from the S. W., W., and N. W. ; whereas, at Port Kennedy, 

 where the wind is much subject to local influences, nearly the opposite law would 

 hold good. 



The changes in the atmospheric pressure during the more violent storms have 

 already been noticed, and were illustrated with diagrams. 



