GEOLOGICAL SURVEY OF INDIA. 



Memoirs, Vol. XLVIL PI. 3. 



FIG. 1. SMALL IRON BLAST FURNACE IN THE TIEN-TAUNG KUAN. FRONT VIEW 



Photographs by J. Coggin Brown, a. s. /. Calcutta. 



FIG. 2. SIDE VIEW OF THE LOW IRON BLAST FURNACE OF THE TIEN-TAUNG KUAN. 



