20 



for the year was reached during the afternoon of that day, being about 47 miles 

 per hour. The wind came on that day from the North and Northwest, the 

 record showing Nortli in the morning, Northwest in the middle of the day and 

 North again at night. The high wind of February 23 was North in the morning, 

 Northwest at 2 P.M. and West at night. There have been no extremely high 

 winds, such as are here known as " typhoons " during the year, although some 

 have been reported off the Southern and South-eastern Coast of Japan. 



The least motion of the Air for any day of the year was 24.5 miles on May 

 31. 



Tables K, L and M show the winds classified as to time and direction. 

 Table K shows the number of times the wind was recorded as blowing from 

 various directions at the hours 7 P.M. 2 P.M. and ]0 P.M. for each month 

 and for the year. Table L shows the number of times the wind registered a 

 velocity of 20 miles per hour and over from various directions, for each month 

 and for the year. Table M shows the total miles of wind in each month from 

 various directions. Table L is interesting as indicating the prevailing direction 

 of high winds, by far the greater number coming from the North and Northwest 

 There are 30 records from those points against 10 from all others combined. 

 The number of such winds in the first six months of the year exceeds that of the 

 remainder of the year in exactly the same ratio. 



These facts, as well as others of interest are strikingly exhibited in the 

 charts which illustrate the direction and velocity of the wind. Chart No. 5 shows 

 the prevailing direction of the wind during each of the months of the year. It 

 is based upon table K and represents the relative number of times the wund has 

 been recorded from each of the eight points, without regard to its velocity. The 

 great preponderance of winds from the North and Northwest during the first three 

 months of the year is distinctly shown, and also the fact that during April, May 

 and June the winds seem to shift around to the South through the East. South 

 winds are largely in excess during July r and August, but in September a sudden 

 change to the North occurs, ending in December with a diagram closely resem- 

 bling that of January. 



Chart No. 6 is constructed in precisely the same manner, except that in it the 

 actual number of miles travelled by the wind in various directions is considered. 

 While the general forms of the diagrams are similar to those of the preceding 

 chart a comparison of the two will show distinctly the excess of high winds from 

 the North and North-west. It will be observed on this chart that in the months 

 in which the wind is generally in the South considerably smaller areas are 

 included than in the others, which is due, of course, to the much less absolute 

 movement of the air. Charts No. 7 and No. S exhibit the same results for the 

 whole year. An examination of these two charts establishes beyond question two 

 conclusions ; that the wind blows more frequently from the North and North- 

 west than from any other directions ; and that these are especially the directions 

 from which winds of high velocity come. This last statement is strongly verified 



