THE 



LONDON and EDINBURGH 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



♦ 



[THIRD SERIES.] 



JANUARY 1833. 



L Note on the Mean Temperature of 'Irkoutsk, in Siberia. By 

 Professor M. A. Kupffer, of the Imperial Academy of 

 Sciences of St. Petersburgh* '. 

 1VT TCHOUKINE, at Irkoutsk in Siberia, sent me some 

 ■***■*-• time ago an abstract of his meteorological observations, 

 which have been continued during ten consecutive years ; with 

 a perseverance which is the more laudable, as the example of 

 it is rare in the interesting country where he lives. 



The months are reckoned after the Old Style, which is still 

 generally used in Russia. 



Table showing the Mean State qftheOctogesimal, or Reaumur's 

 Thermometer in Irkoutsk, during Ten successive Years, for 

 1820—1.830 inclusive. > 



* Communicated by the Author. 

 Third Series. Vol. 2. No. 7. Jan. 1833. B 



