374 AnDK. LlNDACKU 



In 19()S <)))seivations were made for Ihe first lime on March 12, 

 and even Hun tiie black-bulb thennoineler slood 'M) higher than 

 the station-thermometer: 3 days earUer, therefore, than in tlie 

 préviens year, when this result was not attained till March 15. But 

 the greatest dilTerence is a little lower than in 1907, and occurs a 

 little later — April 'Jnd. 



For some of my measurements of temperature in the field, I 

 also employed the black-})ulb thermometer and, at the same time, 

 thermometers with a blank bulb and with a coloured, brown bulb. 

 For the measurement of the temperature of the air the swinging 

 thermometer was then employed. 



May 17, 1907, at 3 p. m. 



Air — 7.0° 



Black bulb -4- 13.0° | , . , , , ^ , , 



, o ^ lymg on a level gravel-field. 



Blank bulb -f 6.8 I ' 



May 20. Air — 2.0° 



At 1.35 p. m. Black bulb upon tiie mountain, in 



a tuft of Lnzula -f 29.6° 



At 1.45 p. m. Black bulb in wet clayey soil 4- 26.6"^ 



At 1,55 p. m. Black bulb upon the snow -{- 34.0° 



On July 3, at 5 p.m. Air +8.6°, the black-bulb 

 thermometer registered on an irrigated gravel- 

 field facing the south + 24.7'^ 



(with running water upon the ground -\- 14.8°) 



on a tuft of Draba -\- 29.7° 



on light-coloured clayey soil -f- 31.2° 



July 4, at 11 a.m. Air —8.3 

 Black bulb in a tuft of Potentilla on the mountain + 35.8 



(The earth at a depth of 4 cm. showed + 13.8° 



and the water in a small tarn with a snowdrift 



on its bank showed -f 13.0) 



July 21, at 7.45 p. m. Air -|- 1,5° 



Black bulb -f 17-0 I all three thermometers lying 

 Brown bulb -f 10,6 insolated on flowering 

 Blank bulb -j- 10,0 | Cassiope. 



The day had begun with fog, but this lifted about 2 o'clock, 

 when the sun shone slightlv. 



