1919.] The Sixth Indian Science Congress. elxxi 
A glance at the geological map of India shows at once 
that the Peninsula (as distinguished from the mountainous 
> 
Purana and Gondwana rocks. There is a comparative sim- 
tions. At first attention was directed mainly t nd 
wana coalfields on account of their paramoun a importance to 
the industrial welfare of the country, the ancient Archaean 
rocks being disposed of in a very cursory manner. But durin 
the last three decades an ever-increasing amount of attention 
has been given to the mapping and study of the vast areas 
occupied by the land rocks of India, which are proving = 
be treasure houses not only of fascinating stories written 
stone, often very damaged and difficult to decipher, acimertint 
the early segs: of our globe, but also of vast stores of 
mineral wealt 
not pe pasion upp that, during the short ex- 
istence of this Congress, two Addresses before this section have 
already been devoted bs pone of Archaean geology. In 
1915, ie the second Congres ss, Dr. Smeeth read a very inter- 
esting paper entitled ‘‘ The Geo logical. History = Southern 
India !”’, which has been subsequently reprinted in a somewhat 
amplified form as an “Outline of the Geological "History of 
Mysore*’’, a part of India almost entirely occupied by Archaean 
rocks. In 1917, Mr. Middlemiss, as ine dent of this section i 
the fourth Congress, discoursed on aeons of Archae 
Geology in India*’’. Both these geolouiies in eesialetng 
the results of their prolonged researches in nto the damaged 
documents of Archaean times, concerned themselves with the 
broader and mo th etical aspects of Archaean geology and 
left untouched the philosophically narrower questio i 
portant nevertheless to man. erning st stores ce 
oe wealth preserved in the Indian Archaean form 
tion: 
ae seems to me fitting, therefore, that we should now 
devote ened attention to this more practical aspect of Archaean 
geology, a I propose in this address to consider Some 
problems of Ore Genesis in the Archaean of India 
Ld Oa A By yi eG 141-151 peg ee 
2 Bulletin, No. 6, Dept. “ee f Mines Geology, Mysore State (1916). 
3 J. é& P. A.S.B., XUI, a ee one (1917). 
