9->2 



H. MOHN. METEOROLOGY. [2nd. arc. exp. fram 



WIND. DIRECTION. 



Counting the number of cases in each month in which each direc- 

 tion has been observed, and dividing the totals for each direction by the 

 total number of observations made in the month, calms included, we 

 obtain, when the quotients are multiplied by 100, the numbers in the 

 following Table. These numbers show the frequence of the different 

 winds and calms as percentages of the total number of observations 

 made. The numbers belonging to the intermediate points NNE, ENE, 

 etc. have been distributed evenly, each with half their amount, among 

 the adjacent 8 principal rhumbs. The sum of the horizontal rows is 

 100. The last row in each month gives the means for the month. 



January. 



February. 



March. 



April. 



