62 The Ohio Journal of Science [Vol. XVII, No. 2, 



State Survey organizations previous to 1900 published a 

 number of excellent reports, some of which are listed. The 

 State Geologist has a limited number which can be obtained at 

 prices given below. 



Volume 1. Geology. (iSO pp., LSTS. 



Chapter I. Historical sketch; physical geography; geological 

 relations, geological structures of the Silurian and Devonian. 

 systems. By J. S. Newberry. 



Chapter II. Local geology. The geology of Cu3"ahoga, Summit, 

 Gallia, Meigs, Athens, Morgan, Muskingum, Hamilton, Cler- 

 mont, Clark, Ashtabula, Trtimbull, Lake, Geauga, Williams, 

 Fulton, Lucas, Sanduskv, Seneca, Wvandot and Marion counties. 

 Price SL25. 

 Volume II. Geology. 701 pp., 1874. 



Section I. Surface geology: The Carboniferous System. By J. S. 

 Newberry. 



Section II. Local Geology. The geology of Erie, Lorain, Ottawa, 

 Crawford, Morrow, Delaware, Van Wert, Union, Paulding, 

 Hardin, Hancock, Wood, Putnam, Allen, Auglaize, Mercer, 

 Henry, Defiance, Washington, Noble, Guernsey (southern half), 

 Belmont (southern half), Monroe, Pickaway, Fairfield, Pike, 

 Ross and Greene counties. Price $1.25. 

 Volume III. Geology. 958 pp., 1878. 



Section I. Review of Geological Structure of Ohio. 



Section II. Local Geology. The geology of Tuscarawas, Colum- 

 biana, Portage, Stark, Carroll, Harrison, Guernsey, Muskingum, 

 Belmont, Huron, Richland, Knox, Licking, Medina, Warren, 

 Butler, Preble, Madison, Clinton, Fayette, Shelby, Miami, 

 Logan, Champaign, Darke, Ashland, Wayne, Holmes, Coshocton, 

 Franklin, Jefferson, Mahoning and Brown counties. Price $1.25. 

 Volume V. Geology. 1124 pp., 1884. 



The stratigraphical order of the Lower Coal Measures of Ohio; the 

 Coal Seams of the Lower Coal Measures of Ohio. By Edw. Orton. 



The Meigs Creek coal in Morgan, Muskingum, Guernsey and Noble 

 counties. By C. N. Brown. 



Coal mining in Ohio. By Andrew Roy. 



The gas coals of Ohio. By Emerson McMillen. 



The iron ores of Ohio. By Edward Orton. 



Iron manufacture in Ohio. By N. W. Lord. 



The manufacture of coke. By Henry Newton. 



Building stones of Ohio; the clays of Ohio and the industries estab- 

 lished upon them. By Edward Orton, Jr. 



The glacial boundary in Ohio. By G Frederick Wright. 



Report of the chemical department. Bv N. W. Lord. 



Price $2.50. 

 Vohime VI. Geology. 831 pp., 1888. 



Nearly 600 pages of this volume treat of petroleum and natural 

 gas, by Edward Orton, F. W. Minshall, F. J. Newell, Emerson 

 McMillen and S. W. Robinson. 



