01257cam a22003011  4500001001300000003000400013005001700017008004100034010001700075035001900092040003700111042001200148050001600160086002700176100004300203245008500246260009000331300009400421490006300515500008000578500006400658500008000722650002700802650004700829650004100876830002100917999001700938gs 31000177 DLC20260227111335.0750613s1931    pauabf       s000 0 eng    ags 31000177   a(OCoLC)1391856  aDLCcOTdOCoLCdPBfGdOCoLCdDLC  apremarc00aQE157b.A830 aPY G345/4.3 G12padocs1 aAshley, Geo. H.q(George Hall),d1866-12aA syllabus of Pennsylvania geology and mineral resources /cby George H. Ashley.  aHarrisburg :bDepartment of internal affairs, Topographic and geologic survey,c1931.  a160 p. incl. ill., maps, tables, diagrs. :bII pl. (fold. col. map, fold. tab.) ;c23 cm.1 aPennsylvania Geological survey, 4th (1919-   ) Bulletin G1  a"Publications of the present [Pennsylvania] Geological survey": p. 147-150.  a"Publications of the second Geological survey": p. 152-154.  a"List of U. S. Geological survey publications on Pennsylvania": p. 155-158. 0aGeologyzPennsylvania. 0aMines and mineral resourceszPennsylvania. 0aGeologyzPennsylvaniavBibliography. 0aBulletin G ;v1.  c26889d26889