Report of progress 1874-1889, A-Z .. . LETTEK OF Mr. DINYILLIEES. 907 Walnut Street,Philadelphia, July i, J. P. Lesley, Slate Geologist: Dear Sir : I have the honor to submit to you my reporton the geology and topography of the South mountains orReading hills of Berks county, with the border of theMesozoic formation on the south included in the county. Map ot £erks County Scale of EXPLANAT/om -^ Jireas saneyed, majoxA ?^ I [ greets ru^y^^tAicaUy, (xiDs.) Xii D\ REPORT OP PROGRESS. E. V. dINVILLIERS. In accordance with instructions received from you in thespring
Report of progress 1874-1889, A-Z .. . LETTEK OF Mr. DINYILLIEES. 907 Walnut Street,Philadelphia, July i, J. P. Lesley, Slate Geologist: Dear Sir : I have the honor to submit to you my reporton the geology and topography of the South mountains orReading hills of Berks county, with the border of theMesozoic formation on the south included in the county. Map ot £erks County Scale of EXPLANAT/om -^ Jireas saneyed, majoxA ?^ I [ greets ru^y^^tAicaUy, (xiDs.) Xii D\ REPORT OP PROGRESS. E. V. dINVILLIERS. In accordance with instructions received from you in thespring of 1879, I began the contour line survey of this dis-trict, with Mr. Charles L. Berkemeyer as rodman. Mr. A. P. Berlin had already completed a similar surveyof the Great or East Penn limestone valley as far west asReading; as far north as the roads along the edge of theNo. Ill {Hudson Jiiver) slates ; and as far south as a base-line in the mountains along the roads leading from Alburtis,in Lehigh county, through Stony Point and Pricetown, toHeading. These northern and southern base-lines were carefullyrun and leveled, and joined at the Reading depot with thelevels of the Philadelphia and Reading railroad. The East Penn railroad furnished an intermediate base-line. The open limestone country was then rapidly and accu-rately covered with 10 contour lines (refeiTed to oceanlevel) by Mr. Ber
Size: 1745px × 1432px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1, bookdecade1870, booksubjectcoal, booksubjectgeology
