Report of the Bureau of Mines of the Department of Internal Affairs of Pennsylvania . s is that tlu-y seld(»m agi-ee. The cpies-tion, therefore, luss agitated the minds of engimei-s is the fol-lowing: When a difference bet\\een the descrijition and the markedline is found to exist, which should he a<lluMtd to. t!ie descrijition oi-the marked line? We think that the most experienced eni;ineers agree that themarked iine has the greater weight. Aj)art fiom this, it is wellknown tluit in thickly inhabited districts, in cases in which no jiar-licular care has been taken to preserve the l


Report of the Bureau of Mines of the Department of Internal Affairs of Pennsylvania . s is that tlu-y seld(»m agi-ee. The cpies-tion, therefore, luss agitated the minds of engimei-s is the fol-lowing: When a difference bet\\een the descrijition and the markedline is found to exist, which should he a<lluMtd to. t!ie descrijition oi-the marked line? We think that the most experienced eni;ineers agree that themarked iine has the greater weight. Aj)art fiom this, it is wellknown tluit in thickly inhabited districts, in cases in which no jiar-licular care has been taken to preserve the location of land lines,by the erection of monuments, all tlie oiiginal marks have beenobliterated. Therefoie, it appears to the wiiter Ihat the severalboundary lines of our mines should l)e snr\ryed by the engin«^rsof the adjoiniii niiies in conjunction, for so long as the sanie lineis agreed upon, and located on th(»ir respe<tive ma])s, whethei- i! bethe correct line or not, trouble on this score is avoided ;md greatersafetv obtained. h oDra -I—I nlrt jczDi irzjE izz. CD F en-f—I li ^ srsms^rss^ss^ss^ 3CZ3CIIDEIZ3L X It No. 10. SECOND ANTHRACITE DISTRICT. 89 KefeiTing now to diagram No. 1, the Hue a b is the common bound-ary. Tlie uiiue workings and the line in blaclv are as determinedby the engineer of that mine. The mine worlciugs and line in redare as determined by the engineer of the mine. It is assumed thatthe dividing line is not established on the ground, as is oftenDie case. Now a b aiid a b are in reality the one and the sameline; the two positions shown are owing to the ditference in theopinions of the engineers. Tt will be further noticed that the work-ings in black are lifty feet from the line of the same color, and theworkings in red are also fifty feet from its corresponding line. Onthis accouiU the parses interested have some reason to believe thata barrier pillar of 100 feet is reserved. However, owing to the factthat the position of lines


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcoalmin, bookyear1900