1 68 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. OX) 



IRKUTSK, U.S.S.B, 



Lat. 52° 16' N. Long. 104° 19' E. H 

 PRESSURE AT STATION LEVEL: COR. TO 0' 

 GRAV. AT 45° LAT. 

 Means of 4 (7" + 13" + 2D, local meridian 

 700 mm + 



= 467.0 m 

 C. (32° F.) 



AND TO 



M'ns 28.1 27.2 24.9 21.4 18.4 15.9 14.8 15.9 21.5 24.4 25.6 27.6 22.1 



TEMPERATURE IN DEGREES C. 



Means of ha b + 13 b + 2V) 



Date Jan. Feb. Mar. Apr. May June July Aug-. Sept. Oct. Nov. Dec. Means 



M'ns 



-20.4 —19.0 — 9.4 



1.4 



8.6 15.0 18.8 15.8 



8.5 



0.7 —10.4 —19.1 —0.8 



TOTAL PRECIPITATION IN MILLIMETERS 



M'ns 11.9 



8.6 



10.0 14.2 31.7 75.7 67.4 61.1 40.1 19.5 15.8 13.3 369.4 



