178 



Memorandum on the Irawadi River. 



[No. 2, 



Monthly Rise and Fall of the Irawadi River, during the years 1S56, 

 1857 and 1858, in Feet and Decimals. 





Peome. 



Henzadah. 





1856. 



1857. 



1858. 



1856. 



1857. 



1858. 





— 



+ 



— 



+ 





+ 



— 



+ 



— 



+ 



— 



+ 



January 







2-3 





2-2 









5-0 





1-0 





February ... 







1-4 





0-8 









1-9 





1-0 





March 







0-6 



0-2 











0-9 



1-0 



1-0 





April 









4-3 





4-4 





2-3 





3-8 



1-0 





May 









4-8 





21-0 





4-1 





2-2 



0-3 



18-3 



Juue 









14-0 





3-1 





24-7 





11-9 





37 



July 



0-5 







135 





3-5 





5-3 





14-6 





35 



August 



7-1 





8-4 



4-9 





8-0 



3-7 





3-8 



2-1 





3-4 



September 



14-7 





65 







0-2 



8-2 





6-6 









October 



1-5 





12-2 











1-5 



12-0 









November 



11-2 





69 









11-9 





4-0 









December 



3-8 



2.5 



1 







0-9 





4-0 









Annual Rise above the loivest known level. 





Thtetmto. 



Peome. 



Hestzadah. 



1856 

 1857 



1858 



45-6 

 455 



431 



41-7 

 41-4 



364 

 37-8 

 365 



Average rise 



45-55 



4206 



36-90 



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

 season is another subject of considerable importance towards clearing 

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

 French geographer D'Anville first broached the opinion that the 

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

 great English geographer Major Riunell of the Bengal Engineers 

 identified the Tsanpu with the upper course of the Brahmaputra 

 River. The former opinion was adopted by Klaproth, Dalrymple, 

 and Griffith. The latter opinion by Wilcox, whose adventurous 

 journey across the Khamti mountains to the upper valley of the 

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

 could not be far to the north of latitude 27° 26', the point where he 



