.TRANSACTIONS 



OF THE 



GEOLOGICAL SOCIETY OF PENNSYLVANIA. 



VOL. I.— PART II. 



ON THE RELATIVE POSITION OF THE TRANSITION AND 

 SECONDARY COAL FORMATIONS IN PENNSYLVANIA, AND 

 DESCRIPTION OF SOME TRANSITION COAL OR BITUMIN- 

 OUS ANTHRACITE, AND IRON ORE BEDS NEAR BROAD 

 TOP MOUNTAIN, IN BEDFORD COUNTY, AND OF A COAL 

 VEIN IN PERRY COUNTY, PENNSYLVANIA. WITH SEC- 

 TIONS. By Richard C. Taylok, Fellow of the Geol. Soc. of London ; 

 Associate Fellow of Inst. Civ. Eng. London; Member of the Geol. Soc. 

 of Pennsylvania; of the Acad. Nat. Sci. Philadelphia; and of the Albany 

 Institute, New York. 



In the Report of the Committee of the Senate of 

 Pennsylvania upon the subject of the Coal Trade," under 

 the article describing " the Bituminous Coal Field of 

 Pennsylvania," page 33 ; the writer describes this coal 

 field as passing eastward in advance of the Alleghany 

 mountain, and as including the coal of the western parts 

 of Bedford and Huntingdon counties; adding that ''it 

 seems most probable that Wills', or Evett's, or possibly 

 Sideling mountain, there forms the boundary of this de- 

 deposit," thus carrying the line of division between the 

 grauwacke and the secondary groupe, thirty miles in 

 front of the Alleghany range. 



I. — X 



