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GEOLOGICAL SURVEY 



to here, but the knowledge thus gained was most valuable 

 when it came to constructing the general geological map of 

 the country issued with the Manual. They were able to 

 speak with certainty about the general features of large 

 tracts which are not likely to come under a regular survey 

 for many years. 



In addition to the field work and the resultant memoirs 

 and papers with their various maps, sections and other illus- 

 trations already enumerated, the officers of the Greological 

 Survey have furnished many resumes for District Manuals 

 and Presidency Gazetteers. Five (if not six) courses of 

 geological lectures were delivered at the Civil Engineering 

 College in Madras, to which the public was also admitted, 

 while many weeks of labor were bestowed some years since by 

 Mr. King and the writer on the re-arrangements of the large 

 collections of minerals and fossils in the Madras Museum 

 which they further enriched with large numbers of valuable 

 specimens. 



The amount of work performed by the Greological Surveyors 

 In the south of India alone, when judged by the area which 

 they have mapped, will be found to be by no means 

 contemptible. This area amounts as nearly as possible to 

 100,000 square miles and lies chiefly on the eastern side of 

 the Peninsula (the region in which the coal-bearing rocks 

 were most likely to occur) from Madura up to the borders of 

 Yizagapatam ; with a broad belt across the entire width of the 

 Peninsula covering great part of the basin of the Kistna and 

 another running up the valley of the Grodavari to join the 

 Central Indian area. To these should be added the Nilgiri 

 plateau and the southern half of the Wynaad. Those who 

 have not gone about much have little idea of the physical 

 labour they would have to undergo before they could give an 

 accurate and useful account of the mere topography of a large 

 tract of country. The members of the other Survey Depart- 



