Report of progress on the brown hematite ore ranges of Lehigh county : with a description of the mines lying between Emaus, Alburtis and Fogelsville / by Frederick Prime.
- Harrisburg : Pub. by the Board of Commissioners for the Second Geological Survey, 1875.
Dix p., 1 leaf D73 p. : ill., fold. map ; 23 cm.
- Report of progress (Geological Survey of Pennsylvania) ; D.
[Report of progress] / Second Geological Survey of Pennsylvania, 1874 ; D.