Show MINING literature amoth i set of bu atins and of 0 interest to tonn ners anil ind mining men ia Is announced b the bureau hureau of win included ate bulletin no I 1 r 2 abstracts Aos tracts of canent I 1 eli eus ons oils ill mima mints and ainuu to april 1917 technical papers no 17 1 suggestions gest ions for site operate it of G iso line engines in lit alinea mines no I 1 iaco b 0 firing a coa n large Ife heading aIng boilers Ilo ilera aho alln can call be ve a sa cunil fit fie e if it otil tred 1 b from the directs of tho the baik bai lu ill of min s |