ANTARCTIC CLIMATE, 55 
TaBLe VI.—Conpirions purivGc a Storm on Apriu 2, 1899. 
Tine Beomeses | Tempemtare | precton or Wine. | sn of 
April 1— {nches. oR, Miles per Hour. 
OepaMe-es, Sel ge oe 29°599 12°2 Ww. 5:7 
April 2— 
Dam... +e se ae 29°199 17:0 Whirlwinds. oe 
llam. ee ee 29° 064 22°6 E.S.E. 82 
LEPMNE 0). dt) eek S| 28°919 24-0 E.S.E. 83 
SPM cis, oi ee cote 28°916 26°9 E.S.E. 102? 
DeDiNs, da0 vga te ole 28-880 24°3 E.S.E. 88 
T Piss, onl olbe ) ats 28-880 25°3 E.S.E. 90 
OpPitias, se aw oe 28°917 27°9 E.S.E, 82°5 
April 3— 
Q! aM: aur wel ae es 29-208 19°5 8. 40°6 
The maximum temperature during the gale was 31°5° F. 
During a gale on March 19 a Robinson anemometer was demolished, 
the velocity of the wind exceeding 90 miles an hour; and another 
was destroyed on the night of May 18, when it was impossible to 
estimate the velocity of the wind. The anemometers used were tested 
at the Kew Observatory prior to the departure of the expedition from 
England, and were found to give results within 97 per cent. of the 
Kew instruments. It is evident, however, that the action of wear 
and tear on the instrument by these gales must have a very material 
influence on its indications. 
The barograph and thermograph curves during a storm from the 
East-south-east on May 14, 1899, show very clearly that the tem- 
perature commences to rise before the barometer commences to fall ; 
indeed, it was often possible to predict an approaching gale by the 
thermometer alone, long before the barometer showed any sign of the 
disturbance. 
The mean barometric pressure for the winter months is much 
lower than the mean for the summer, but the means have not yet 
been determined. The highest barometric pressure occurred on 
July 22, 1899, when the barometer registered 30-182 inches, and the 
lowest, 27°860 inches, on September 9, 1899. 
On the journey from Cape Adare southwards, some remarkably 
low temperatures were observed for the time of the year. Thus, 
off Mount Erebus on February 11, 1900, the temperature sank to 
— 6° F. with a wind from the South straight off the great ice barrier. 
Again, on February 19, the minimum temperature was — 12° F. 
