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ANON appears Assistant associated Attached average bands bank bauxite beds Bihar Bombay boring carried cement cent charnockites Circle clay coal collected consist contain continued covered dam-site deposits depth detailed Development district Division drilling early east effect Engineering examined feet field formations further geological Geological Survey Geologist gneisses Government granite ground half headquarters hills important inches India joints leave lignite limestone localities located Lower Madhya Madras mapping material middle miles mineral Mining November Nummulites occur places portion possible Pradesh present production proposed quantity quartz quartzites range region reports reserves Returned river road rocks samples sand sandstone seams shales sheet sheet 57 side soil strike suggested suitable surface TABLE thickness thin tion tons trap Upper valley Value varying veins village visited water supply yield zone