GEOLOGICAL SURVEY OF LXDIA 



Memoirs, Vol. XLVII. PI. : 



FlG. 1. LOW IRON FURNACE OF THE TIEN-TAUNG KUAN IN BLAST. 



Photographs by J. Coggin Brown. G. S. I. Calcutta. 



FIG. 2. HIGH BLAST FURNACE FOR IRON ORES SHOWING TURBINE-BLOWER. YUNG-CH'ANG FU 



