Show depth of mines an engish journal after valuing the total 1 product of of great britain at 41 1 per annum and computing that eng lands supply of coal will wili jast at least seven hundred yearb years at present rates of consumption gives the following account 0 the depth to which the bowels of the carth earth luve been pierced in england the depth to which we mine mina for coal is already great the pit at D ck enfield in cheshire is 2004 feet below the surface to the point where it intersects the black allne aline coal a eam cam which is four lour feet bix six inches thick and of the best quality for domestic and manufacturing purpose from this point a farther depth of feet reet has been attained by means of an e elgine plane piane in the bed 0 coal so that a great portion of the coal js now raised from the enormous depth of 2504 2304 icet at pendleton near nean manchester coal is daily worked from a d ath of feet and the cannel coal of wigan is brought irom from 1773 teet feet below the surface many of the durham collieries colli eries erles are and far tar more ex tended in thir mean labyrinths some of tho and others othera ivor ked out far under the bed of theses and on both bolh sides bides of the island we are rapidly extending our sub oceanic burrowing tin mina mine ing at isoo feet irom the and rapidly sinking deeper the dep h cf Tres avean asean a roppe coppe mine is 2113 2118 feet many other t n and copper coppen mines are and under the atlantic waves in ack act levant and other mrnes mines man as pur salna saina his labow dlly a mile mlle from tite tile shore lb aid ald the miner la these severe bevere tasks gigantic steam engines wh cylinders 1 dred inches in diameter are maloyed mp loyed ini pumping water vast depths wind ing engines which are masterpieces of mec ladica car at the minerals from each darl dari abys sand sana mah engines of considerable ingenuity because they bi ing the deariel we arieL arlel malner mainer to the day saving basing hla hia from the oh of climbs ing up perpendicular ladders are introduced i in many of our most gerfe c ly conducted annes oar coals co t us annually one thousand lives ilves ani and anore than double that number of perau in the at an carly early ge thirty two from diseases contracted by he conditions cf by the industry of our mining population there is annually added ajdei to clur olur national waith considerable more than thirty millions sterling tois when elaborated by the process af manufacture is increased in value tenfold while we are thus treasure 0 guarded by drago ns aad rea thich ih have cealey in the cave s botn oin e art areli arl li we hould not much of mental labor ani power is expended and ana how large a per benage of humble life ilfe is annually sacrificed in the contest with biose hydra headed evih which are truly personified by the dragons of the legend |