166 PROCEEDINGS OF THE INDIANA ACADEMY OF SCIENCE. 



direction tlirough Ohio and Jefferson Counties, grazing the edge of Kentucky 

 again opposite Madison and reaching its southernmost point near Charleston, 

 in Clark Count j', Indiana. From here it bears again to the north through 

 Scott and Jackson Counties to the line between Bartholomew and Brown 

 and follows this to the northeast corner of Bro\STi. There again it turns to the 

 southwest, touching the northeast corner of Monroe, where it again bears 

 north for ten miles, to near Alartinsville in [Morgan County. Here again the 

 line turns west and south, passing diagonallj' tlirough Owen, Greene, Knox 

 and Gibson Counties, and into Posey as far as Xew Harmonj', where, for the 

 present, I have left it." Farther on he says: "Everywhere over the glaciated 

 region the tiU, or ground moraine, has been forced like puttj' into the gorges 

 formed bj' the erosion of pre-glacial streams, so that nothing is more common 

 throughout this region than to find that the old channels have been buried, 

 and the streams forced to flow in new channels of modern date." Several of 

 these old preglacial channels are in eastern Indiana and were discovered and 

 their courses traced for scores of miles, during the boring for gas and oil be- 

 tween 1888 and 1910. 



In 1890 this pamphlet bj' Prof. Wright, illustrated, much enlarged, and 

 with an extended introduction by Dr. Chamberlain, was published as Bulletin 

 No. 58 of the U. S. Geological Survey. Prof. Wright had in the meantime 

 traced the boundarj^ line of the glacier across lUinois to the Mississippi 

 River, and in this bulletin he describes in detail the character of the drift in 

 each of the Indiana counties which the l)oundary line crosses. 



In 1886, Dr. J. C. Branncr, then Prof, of Geologj' in Indiana University, 

 published a small colored geological map of the State. 



The "Hoosier Mineralogist and Archaeologist," a small magazine pub- 

 lished in Indianapolis in 1885 and 1886, contained a number of short articles 

 of interest on the mounds of Decatur, Rush and other counties. There 

 were also two on the "Archaeology of Wj'andotte Cave," by Rev. H. C. 

 Hovey. In the January, 1886, number of this magazine there is an account 

 of the first annual meeting of the Indiana Academy of Science. 



Between 1882 and 1891, C. S. Beechler, of Crawfordsville, published in 

 the American Geologist, several papers on the "Keokuk Group," giving notes 

 on stratigraphy, lists of fossils found near Crawfords\'ille, etc. 



The discovery of gas in Indiana in 1888 and petroleum in 1891, furnished 

 a theme for a number of papers which treated of these bitumens. One of the 

 first of these was by Frank Leverett, who has since become noted as a student 

 and authority on glacial geology. It appeared in the American Geologist 

 for July, 1889, was entitled "Studies in the Indiana Natural Gas Field," and 

 gave records of the numerous bores first sunk for gas in Indiana, with con- 

 clusions based thereon. He gave the approximate outlines and general trend 

 of the "Cincinnati Anticlinal," stated that there was "probably an axis of 

 upheaval running from Royal Center west to Kentland," and suggested the 

 possil)ility that thorough exploration "might ])ring to light one or more 

 profitable oil fields in Indiana." 



