DANGERS OF BLIZZARDS 325 
able the records do not give the full force of the wind. The 
direction of the wind has been entered on the records, and in the 
line below the direction the time has been shown, as the time 
printed on the charts was not correct. 
The record for March 12, 1911, 1s typical of the blizzards 
during the first months after our arrival, when the depots were 
being laid and the first ponies were lost (Fig. 2). 
The record for July 23, 1911, is interesting as this was the 
blizzard which nearly proved fatal to Wilson’s party at Cape 
Crozier. The important thing to notice in this record is the 
extreme gustiness of the wind: in the hour between 7 P.M. and 
8 p.M. the wind varied in velocity between 24 and 84 miles an 
hour (Fig. 3). 
One of the most dangerous peculiarities of the blizzards was 
the suddenness with which they commenced. Three examples 
of the sudden setting in of blizzards are shown in Fig. 4. 
The following tables contain the chief meteorological results 
as far as they were worked out at the time of writing. The 
Framheim results, taken from Amundsen’s ‘The South Pole,’ 
have been included for ready reference. 
BAROMETER 
The barometer observations have been reduced to sea-level 
and normal temperature and gravity, except in the case of Fram- 
heim, which needs approximately -03 inch adding to reduce to 
sea-level (see Amundsen’s ‘ The South Pole’). 
WIND 
The Cape Evans wind amounts are from a continuous record 
by a self-recording Robinson anemometer. 
The Framheim wind amounts are from observations made 
with a portable anemometer for a few minutes three times a day. 
The Cape Adare wind was estimated on the Beaufort Scale 
and reduced to miles per hour by the equivalents used in the Lon- 
don Meteorological Office. 
