164 
THE ANTARCTIC MANUAL. 
Taste XXIL—Temperature or THE air at St. Monrtiz, OBSERVED AT INTERVALS 
OF TWENTY SECONDS. 
Date, 
26 February, 
1894, 
20 
21 
22 
23 
24 
26 
Difference. Corresponding | 4 mended Differences 
temperate | ——7—— ot temperate | mpaore | ofamened 
Te, = + —t. +t. T=T+2. Fall. Rise. 
oO 
+ 5°88 . . | 6-48 
6°00 0°12 0°60 6°60 0:12 
6°12 0°12 0:60 6°72 0°12 
6°25 0°13 0°60 6°25 0°47 
6°25 6°25 
6°25 3 S: 25 1:00 
6-00 0:25 1°00 4°30 0°95 
5°62 0°38 1-70 3°37 0:93 
5°12 0°50 2°25 4°12 or 0°75 
4°88 0°24 1:00 2°63 1:49 
4°38 0°50 2°25 2°13 0°50 
3°88 0°50 2°25 3°88 re 0°75 
3-88 = se 3°28 0°50 
3°75 0*13 0°60 odo 0°47 
al ii os 4°37 oe 0°62 
3°88 0:13 0°60 3°88 0.49 
3°88 ng 3% é* 3°28 0°50 
BT 0°13 0°60 3°15 0‘13 
3°62 0°13 0-60 A 8:12 0°03 
3°50 0°12 is 0°50 on 3:00 0°12 
3°62 es 0°12 ine 0.50 4°00 = 1:00 
3°50 0-12 0:50 3°12 0°88 
3°50 3°50 0°38 
3°50 
eighty seconds has been applied. 
nearly twice as great. 
Had the rate of cooling of the 
thermometer in the still air of a room been taken, the difference 
between amended and observed temperatures would have been 
“ Characteristics of Fohn Weather.—These observations show how 
rapidly the temperature of the air may vary even in ordinary 
weather. There is a class of weather which is generally known by 
its Alpine name Féhn, the distinguishing feature of which is the 
rapidity with which the temperature of the air changes from moment 
to moment, and the exceptionally high average temperature of the air. 
