The Winds of Kimberley. Tales cens 1) ON 
The total lack of resemblance between these four pairs of com- 
ponents is further illustrated in Table 6, in which the hourly wind 
frequency for each year is shown separately. It may be observed 
that an extra week of anticyclone weather would have been sufficient 
to transfer the final resultant of the combined three years beay into- 
the opposite quadrant. 
There is apparently no escape ion the jamelasin that while 
sometimes. one and sometimes another direction may preponderate 
from ‘year to year, there is nothing to definitely establish the exist- 
ence of a prevailing wind at Kimberley. On the face of it there is 
nothing remarkable in this fact, if it only be remembered that the 
place is in the great southern anticyclone belt, midway between the 
trades and the brave west winds of the southern ocean. Apart from 
that it is completely at variance not only with the popular idea, but 
also with every account touching upon the subject (the Challenger 
Report included) yet published. Universal opinion for many years 
past has assigned us an overwhelming excess of northerly winds, 
some extreme views asserting there is nothing else. Theories even 
have been propounded explaining why the wind is so very northerly : 
- wherein we learn that the trades being deflected from the ocean by 
the excessive heat of the African interior curve round and run south- 
ward along the centre of the southern table-land, for want, it seems, 
-of elsewhere to go! Fortunately we shall be in a position later on to 
see how it is that the idea of a prevailing north wind arose, and why 
it has no foundation in fact. 
Assuming then that no prevailing direction exists, we may eee 
to investigate the salient features of the winds of Kimberley as a 
local phenomonon unperturbed by outside influences. We will con- 
sider first whether the diurnal changes are more clearly defined than 
the annual. Table 7 shows at once that they are. Evidently the 
tendency of each wind is to blow with its maximum frequency an 
hour or two later than the wind tabled next it, and the consequent 
inference must be that the undisturbed yane makes one complete, 
counter-clockwise rotation per diem. There is a slight departure 
from, and exaggeration of, the rule in the case of east and east-south- 
east winds, but the directions on each side fall into line precisely as 
if the maxima were perfectly regular throughout. Furthermore, 
perceptible, though relatively EADS 2H, maxima do occur in both 
these directions near the required times. Standing out very clearly 
is the lack of southerly winds during the morning, and of northerly 
winds during the evening,—the almost entire absence of easterly winds 
by day and of westerly winds by night. With the object of :making 
the daily changes clearer, and of eliminating the influence of the 
6 
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SS 
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