viii CONTENTS. 



Pagb 

 puram teri. Kollatur and Melmandai teris, Sivalpattiteri. Eajakapal- 

 lem teri. Fossil wood, &c., in a teri. Movements of the teris. Manapad 

 dunes. Consolidation of sands. Tiruchendur dunes. Dunes of the Madura 

 Coast and of Eameswaram Island. ....... 87 



CHAPTER XI. 



ECONOMIC GEOLOGY. 



Iron, the only metal found. Old smelting industry at Ayangudi. Building 

 stones. Laterite as a building stone. Gneisses as building stones. Quarry 

 on the Sikandar Malai. Quarries at and near Arupukotai ; at Kotai 

 parai ; at Puliarputti. Carved and polished stones at Madura ; at Ava- 

 diar Kovil. Crystalline limestones of Pantalagudi, &c. Coarse schistose 

 sandstone flags used for menhirs. Marine sandstones. Rameswaram 

 temple. Quarries at Valimukkam ; at Yedanattam ; at Pauamparai ; and 

 Tbissian-villai. . . • • • • • • • .98 



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