54 THE ANTARCTIC MANUAL. 
Tasie IV. 
Date. Solar thermometer. Tempers re 
oR, oF. 
March3.. .. «6 « « 88:0 24°0 
io 3 (Oxat> taem. Seer Las gs 92:0 22-4 = 
pee armen ee om 88°3 20°9 
er BOee ae ee ae te 92°2 24°5 
a oe ae ae ee 104°2 8-0 
Relative humidity between 40 and 50 per cent. 
these gales, and the persistency with which they blew—always from 
the same direction, East-south-east—the invariably high rise in the 
temperature, and the sudden fall and rise of the barometer, the dry- 
ness of the winds—the relative humidity generally between 40 and 
50 per cent.—and the motion of the upper clouds from the North- 
west, point to the fact that the South Pole is covered by what may be 
regarded practically as a great’ permanent anti-cyclone, more exten- 
sive in the winter months than in the summer. Nothing more 
appalling than these frightful winds, accompanied by tons of drift- 
snow from the mountains above, can be imagined. On ninety-two: 
days, or 26 per cent. of the time spent at Cape Adare, the wind blew 
from the East-south-east and South-east with a velocity above 40 
miles an hour, and on one or two occasions above 90 miles an hour, 
at which stage our Robinson anemometers were demolished. A. 
proper table of wind directions, velocities, and thermal wind-roses is 
not available, but the following tables will suffice to convey some 
idea of the conditions. 
Taste V.—Neumper or Days 1n EACH MontH WHEN VeLociTy or THE W1ND 
WAS ABOVE 40 Mites an Hour. 
Month. Number of Days, 
1899. February a a a a ae 
March. se ee ee as Ga elo a DD 
Boprily) kee. sues ahs ARN “gece Se asks 148 
May 7 
June ae 6s 7 
July OF ee 12 
August .. 6 
September 6 
October .. 7 
November 5 
December 9 
1960. January 9 
