Journal . ( ^ -%L .^,---4- Ki^ 7 * ^. /^,^ .|U-!!.:|L Hi 1 i :;-!l - -- - WC f Vif 8- __ — ..-^ JWtf/hf -JfCfins «.^-£. SC Imu 1 1 Pressia-e all IUhr inflaUd J#. Fi.^ 9 E S-FN Spmlond-m^NTOYork IVJ May 7th, A. GOODWIN, President, I^T the Chair. A DEEP BORING NEAR FREISTADT,AUSTRIA. By Robert Nelson Boyd. Ix the present paper the author desnribes a deep boring carried(lilt near Freistadt, Austria, on the Canadian system. By wayof introduction to the main subject he will give a few particularsrisppcting deep borings in general. The art of boring for minerals has been practised by min
Journal . ( ^ -%L .^,---4- Ki^ 7 * ^. /^,^ .|U-!!.:|L Hi 1 i :;-!l - -- - WC f Vif 8- __ — ..-^ JWtf/hf -JfCfins «.^-£. SC Imu 1 1 Pressia-e all IUhr inflaUd J#. Fi.^ 9 E S-FN Spmlond-m^NTOYork IVJ May 7th, A. GOODWIN, President, I^T the Chair. A DEEP BORING NEAR FREISTADT,AUSTRIA. By Robert Nelson Boyd. Ix the present paper the author desnribes a deep boring carried(lilt near Freistadt, Austria, on the Canadian system. By wayof introduction to the main subject he will give a few particularsrisppcting deep borings in general. The art of boring for minerals has been practised by minerstor centuries, but in past times tlie depths required and attainedWere shallow as compared with the present. The first bore-holeswore put down by hand labour, that is, by drawing up the rodsand cutting tool, either directly with the aid of a rope passingover a pulley, or indirectly by winding the rope round a steam-power was applied to the winch, but therope was still held by hand, and the action of the cutting toolill the bore-hole was effected by raising it up a few feet andallowing the rods and the tools to drop with the force of
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Keywords: ., bookcentury1800, bookdecade186, bookpublisherlondon, bookyear1861
