The author in this paper gives the localities of three large mines of this mineral. The first situated in the Semipalatinsk district, Western Siberia, between 47° and 50° N. Lat., and in 80° E. Long. from Greenwich, on the Kirghesian Steppe. The locality of the mine is remarkably barren, and upon digging down a few feet, the graphite is found lying in a continuous stratum which has been ascertained to extend over a space of 2100 acres. This immense deposit belongs to Messrs Samsonof and Mamontof of Sernopol, and is worked for commercial purposes.