72 



Tahleau of High Asia. 



[No. 1, 



ties probably follow the highest formation of grassy turf in the Hima - 

 laya, as well as in the Andes and the Alps. Mosquitoes go up to 

 8,500 ft. ; and peepsies make themselves very troublesome during the 

 rainy season as high as 13,000 ft. 



The "existence of infusoria seems as little subject to limitation by 

 height in High Asia, as in the Andes and Alps. In a few fragments 

 which we chipped off from the rocks of the Ibi G-amin pass (20„459 

 ft.) Prof. Ehrenberg of Berlin detected their presence, and found 

 them not ^insignificant in quantity ; he discovered twelve species new 

 to science. 



