547
Q. 3. Report on Mercer county, by I. C. White. 1880.
Q. 4. Report on Crawford and Erie counties, by I. C. White. Also, a Report on
a preglacial outlet for Lake Erie , by J. W. Spencer. 1881.
R. Report on McKean county, and its geological connections with Cameron, Elk, and Forest counties, by C. A. Ashburner. 1880.
(R.) Atlas for McKean county of 8 sheets: — Colored geological county map; three topographical maps; of Buffalo Coal Company tract, Alton coal basin, and Potato Creek coal basin, map of McKean oil district; one sheet of columnar sections between Bradford and Ridgway; and 2 diagram sheets of the well account in the Bradford district.
R 2. Report on Cameron. Elk und Forest counties, by C. A. Ashburner.
(R 2.) Atlas for Cameron, Elk and Forest counties, of 11 sheets : — 3 colored geological county maps; 1 anticlinal and synclinal map; 1 topographical map McKean county; 2 tract maps Forest and Elk counties; 1 map Straight Creek coal basin; 2 sheets oil well sections; and 1 sheet coal sections.
V. Report on N. Butler county; and (Part 2) special report on the Beaver and Shenango river coal measures, by H. M. Chance. 1879.
V 2. Report on Clarion county, by H. M. Chance. 1880.
Grand Atlas , Div. Ill, Pt. I 1885 port-fol. Petroleum and bituminous coal fields
4. North-Eastern and Middle Pennsylvania . (Palaeozoic formations from the
D. First report on Lehigh county iron mines, by F. Prime.. 1875.
D 2. Second report on Lehigh county iron mines, by F. Prime. 1878.
D 3. Vol. I. Report on Lehigh and Northampton counties. Introduction, by J. P. Lesley, Slate belt, by R. A. Saunders; Limestone belt and iron mines, by F. Prime; South mountain rocks, by F. Prime and C. E. Hall. 1883.
D 3. Vol. II, part I. Report on Berks county, South( Mountain belt) by E. V. D’ln- villiers. 1883.
(D 3.) Atlas: One colored geological map of Lehigh and Northampton counties, (one sheet); one colored geological contour line map of Southern Northampton county, (six sheets); a contour line map of the mountains from the Delaware to the Schuylkill, (eighteen sheets); a colored geological contour line index map to the 22 sheets, (one sheet); and 4 sheets of maps of Iron mines.
D 5. Atlas of colored geological county maps of Cumberland, Franklin, and .Adams, (three sheets); and first instalment of contour line map of the South mountains, Sheets A 1, A 2, B 1, B 2, (four sheets) by A. E. Lehmann.
F. Report on the Juniata river district in Mifflin, Snyder and Huntingdon counties, by J. H. Dewees; and on the Aughwick valley and East Broad Top region in Huntingdon county, by C. A. Ashburner. With colored geological maps of East Broad Top R. R. and Orbisonia vicinity (2 sheets); Three Springs map and section (2 sheets); Sideling Hill creek map and section (2 sheets) and Isometric projection at Three Springs (1 sheet); 1878.
F 2. Report on Perry county (Part. I, geology,) by E. W. Claypole. 1884.
F 3. Report on the Geology of the four counties Union, Snyder, Mifflin and Juniata. 1891.
G. Report on Bradford and Tioga counties, by A. Sherwood; Report on their coal fields (including forks of Pine creek in Potter county), by F. Platt; Report on the coking of bituminous coal, by J. Fulton. (See L above.) 1878.
G 2. Report on Lycoming and Sullivan counties: field notes by A. Sherwood; coal basins by F. Platt. 1880.
G 3. Report on Potter county, by A. Sherwood. Report on its coal fields, by F. Platt. 1880.
G 4. Report on Clinton county, by H. M. Chance; including a description of the Renovo coal basin, by C. A. Ashburner; and notes on the Tangascootac coal basin, by F. Platt. 1880.
G 5. Report on Susquehanna and Wayne counties, by I. C. White. 1881.