178, 



of plants known in Paleozoic Rocks of United States with description (plates 1-22) 

 a few genera and species. 

 Distribution of the Geological strata in the coal measures of In- 

 diana. Ind. Geol. Surv. 1859-60. 



Describes fifteen coal beds and associated rocks ; gives directions for prospecting for 

 coal ; observations on the coal of each county iu the coal field, on the value of the 

 coal in general and the geological horizon of th« coal. 

 Leverett, Frank. On the correlation of Moraines with Raised Beaches 



of Lake Erie. A. J. S. Ill, vol. 44, p. 281, 

 Glacial phenomena of Northeastern Illinois and Northern Indi- 

 ana. A. A. A. S. vol. 38, p. 248 (1889). 



Studies in the Indiana Gas Field. Am. Geol. vol. lY. pp. 6-20. 



Describes the character stratagraphical extent and thickness of the Devonian and 

 Silurian shales and limestones; discusses the topographic features of the "Cincin- 

 nati Axis" as brought out by the table of boreings giving altitudes, depths and 

 thickness of the formations penetrated, also the distribution of natural gas in the 

 Indiana field, strength of wells ; difference in altitude of salt water line in Indiana 

 and Ohio, occurrence of oil ; theories explaining rock pressure as manifested by 

 the gas fiow. 



Lithographic stone. E. T. Cox Rep. 1872, pp. 77-147. (Perry 



county). 

 Levette, G. M, E. T. Cox Rep. 1875. (Depths and temperatures of 

 lakes in Northern Indiana.) 



Observations on DeKalb, Steuben, Lagrange, Elkhart, Noble, 



St. Joseph, Laporte counties. E. T. Cox Rep. 1873, pp. 430-474 



Fuel values of coals. J. Collett's Rep. 1873, pp. 10-34. 



Gives tabulated analysis of coals from Clay, Daviess, Dubois, Fountain, Greene, Gib- 

 son, Knox, Martin, Montgomery, Owen, Parke, Perry, Spencer, Sullivan, Vander- 

 burg, Vermillion, Vigo, Warrick, Warren, Posey counties. 



Observations on the depth and temperature of some of the lakes 



of Northern Indiana. E. T. Cox Rep. 1875, pp. 469-503. 

 A hydrographic survey is made of the following lakes : Manitou, Fulton county ; Pine, 

 Laporte county ; Stone, Laporte county; Clear, Laporte county ; Centre, Kosciusko 

 county; Syracuse, Kosciusko county; Eagle, Kosciusko county; Reservoir, Noble 

 county; Bixell's, Noble county; Latta, Noble county; Twin Lakes, Lagrange 

 county; Crooked Lake, Steuben county ; James, Steuben county. 

 Lyon S. S. and Casseday S. A. Descriptions of nine new species of 

 Crinoidea from the subcarboniferous rocks of Indiana and Kentucky. 

 A. J. S. Ser. II. vol. 28, p. 233 and vol. XXIX, pp. 68-79. 

 The species described belong to the following genera, viz: Asterocrinus, Ptero- 

 crinus, Zeacrinus, Cyathocrinus, Actinocrinus, also a new genus, Onychocrinus. 



