SERIES B. ZONE i. LAT. 70° TO 75° N. 



79 



rs 



January 



February 



March 



April 



May 



June 



July 



August 



Sept'mb'r 



October 



Novemb'r 



December 



Spring 



Summer 



Autumn 



Winter 



The year 



January 



February 



March 



April 



May 



June 



July 



August 



Sept'mb'r 



October 



Novemb'r 



Deceuibei 



Spring 



Summer 



Autumn 



Winter 



The year 



738 











412 



132 



232 



96 



406 



668 



152 



42 



25 



544 



734 



862 



758 



2898 



74| 

 901 

 280; 

 344 

 140 

 212 

 176 

 108 

 100 

 26S 

 216 

 144 

 764 

 496 

 584 

 308 

 2152 



920 



888 

 2468 

 5364' 

 1128 

 2188 

 2876 



998 

 1 



6048 

 4386 

 1660 

 8960 

 6062 

 12098 

 3368 















136 





 36 

 318 

 1358 

 • 108 

 100 

 8 

 

 136 

 1712 

 216 

 

 2064 







104 







4 



28 



86 



1476 



360 



34 



20 



104 



118 



1870 



24 



2116 



848 







4 



21126 



138; 146 



536 2252 



340 348 



Oj 



398 



856 



140 1276 



876 2600 



2 496 



1018 5228 



22 



138 



38 



76 



220 



52 



26 



1 



180 



28 



12 



60 



334 



274 



220 



220 



1048 



400 

 2338 



576 

 1232 

 4980 

 1104 



466 

 1832 

 4284 



236 



212 

 1546 

 6788 

 3402 

 4732 

 4284 

 19206 



512 

 348 

 200 

 76 

 220 

 304 

 314 

 128 

 136 

 304 

 406 

 388 

 496 

 746 

 846 

 1248 

 3836 



92 



86 



226 



116 



128 



100 



84 



64 



12 



28 



78 



114 



470 



248 



118 



292 



1128 



8812 



6672 



4304 



1252 



3436 



7552 



6054 



1520 



3184 



8528 



9220 



7442 



8992 



15126 



20932 



22926 



67976 



N. 10°26'W.? 

 N. 21 58 W.? 

 N. 26 24 W.? 

 N. 39 11 W.? 

 N. 24 45 W.? 



N. 38° W. 

 N. 51 W. 

 N. 21 W. 

 N. 16 E. 

 N. 63 W. 

 N. 34 W. 

 N. 29 W. 

 N. 25 W. 

 N. 81 W. 

 N. 11 W. 

 N. 20 W. 

 N. 44 W. 

 N. 30 W. 

 N. 31 W. 

 N. 29 W. 

 N. 44 W. 

 N..35 W. 



5090 



4556 



7388 



8540 



6368 



4166 



585 



9700 



10186 



8454 



1450' 



17118 



23086 



26281 



80953 



S. 60|°E. 

 S. 39 E. 

 S. 11 E. 



N. 60 W. 



S. 45^°E. 

 S. 53 E. 

 N. 2 E. 

 N.71 W, 



10870 



10002 



7356 



9348 



9676 



11120 



10966 



6484 



14172 



16112 



13902 



10986 



26380 



28570 



44186 



31858 



130994 



1 Computed from a portion of a series of observations made during an expedition in search of Sir John Franklin 

 under the direction of Sir Francis Leopold McClintock, and presented by him t6 the Smithsonian Institutiou. The 

 whole series was discussed at its expense by Mr. Charles A. Schott, of the U. S. Coast Survey ; and, with the 

 exception of the fractional portions of the mouth of August, the foregoing classification of the winds, and the 

 computation of the direction of the second series of resultants, is taken from his work. For a portion of the 

 year, observations were recorded twelve times a day, and for the remainder only six. In order, therefore, to give 

 to the latter their due weight in determining tlie resultants for the different seasons and for the year, the number 

 of observations and the corresponding number of miles is doubled. 



The estimated force of the wind was indicated by Beufort's scale of numbers from 1 to 12, and from Smeaton's 

 table, and also from Bernoulli's formula. Mr. Schott makes the corresponding velocity to be as follows : — 



ccording to 



Corresponding velocity 



'B notation. 



in miles per hour. 



1 



1 



2 



4 



3 



10 



4 



17 



5 



24 



6 



32 



Force according to 

 Beufort's notation. 

 7 



Corresponding velocity 



in miles per hour. 



40 



8 



48 



9 



56 



10 



67 



11 



82 



12 



100 



The mean velocity of any wind for any month of the year may be found by dividing the number of miles 

 travelled by that wind in that month, as pivc^n in the second of the following tables, by the number of miles as 

 given in the lirst. For full discussion see Smithsonian Contributions, Vol. XV. 



