178 



Memorándum on tlte Irawadi River. 



[No. 2, 



Monllihj Bise and Fall oftlie Irawadi JRiver, during the years 1856, 

 1857 and 1858, in Feet and Decimals. 





Peome. 



Henzadah. 





1856. 



1857. 



1858. 



1856. 



1857. 



1858. 





0-5 



71 

 14-7 



1-5 

 11-2 



38 



+ 



2-3 

 1-4 

 0-6 



8-4 

 65 

 122 

 69 

 2.5 



0-2 

 4-3 



4-8 

 14-0 

 135 



4-9 



2-2 

 0-8 



+ 



4-4 

 21-0 



3-1 



35 

 •8-0 



0'2 



37 



8-2 



11-9 

 0-9 



+ 



2-3 



4-1 



24-7 

 5-3 



1-5 



50 

 1-9 

 0-9 



3-8 

 66 



120 



4-0 

 4-0 



+ 



1-0 

 3-8 

 2-2 

 11-9 

 14- 4 ) 

 21 



1-0 

 1-0 

 1-0 

 1-0 

 03 



+ 



Jmmary 



February 



March 



April 



May 



June 



July 



Angust 



September 



October 



November 



December 



18-3 

 37 

 35 

 3-4 



Annual Eise above the lowest known level. 





Thtetmyo. 



Peome. 



Henzadah. 



1856 



1857 

 1858 





43 J 



41-7 

 414 



364 



378 

 365 



456 

 455 



Average rise 



4555 



4206 



3690 



9. The volume of water discharged by the Irawadi in the dry 

 season is another subject of considerable importance tovvards clearing 

 up the still disputed question of the sources of the river. The greafc 

 French geographer D'Anville first broached the opinión that the 

 upper course of the Irawadi was the Tsánpü River of Tibet, but the 

 great English geographer Major Rinnell of the Bengal Engineers 

 identiñed the Tsánpu. with the upper course of the Brahmaputra 

 River. The former opinión was adopted by Klaproth, Balompié, 

 and Grifíith. The latter opinión by Wileox, whose adventurous 

 journey across the Khamti mountains to the upper valley of the 

 Irawadi has all but fmally established that the sources of the Irawadi 

 could nofc be far to the north of latitude 27* 26', the point where he 



