Memoirs of the Geological Survey of India. . the supply of2,000 tons of coal. As neither of the shafts at that time had been com-pleted, a second incline and several cross-roads were opened out, whichenabled the raisings to be increased from 3 to 15 tons a day. Throughout the workings the seam retains nearly, though not quite,the thickness that it has at the outcrop. I give for comparison thefollowing measurements made in the quarry and at the dip and rise endsof No. 1 incline. Quarry {descending). (a) Coal, bright(4) Stone band . (c) Coal, bright (d) Stony shale, dull .(*) Coal, bright (/) Co
Memoirs of the Geological Survey of India. . the supply of2,000 tons of coal. As neither of the shafts at that time had been com-pleted, a second incline and several cross-roads were opened out, whichenabled the raisings to be increased from 3 to 15 tons a day. Throughout the workings the seam retains nearly, though not quite,the thickness that it has at the outcrop. I give for comparison thefollowing measurements made in the quarry and at the dip and rise endsof No. 1 incline. Quarry {descending). (a) Coal, bright(4) Stone band . (c) Coal, bright (d) Stony shale, dull .(*) Coal, bright (/) Coaly shale, dull( a) Stone band (//) Coal laminated, bright and duCoal shale, dullCoal, homogeneous Incline No. 1. (a)(*)(h 0 7 0 6 0 2 0 H 0 4 0 3b 1 3 4 4* Risk END. Dip END. ft in. Coal, bard 0 6 0 10 Stone band 0 1 0 14 Coal, bright 0 6 0 7 Stony shale 0 7 0 6 Coal, bright . 0 6 0 f> Coal, hard 0 4 0 H Sterne band 0 2 0 k Coal ... 0 5 2 0 Carbonaceous shale . 0 4 Coal 1 3 4 S 4 8* ( 164 ). HugfllPS afcOLO &ICAL XUHlEY OF INDIA. Memoirs Vol. XXI. Pt. 0
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