602 THE ICE AGE IX NOBTH AMERICA. 



Professor Borden * reports a well at Paris Crossing, in 

 Jefferson county, about twelve miles southwest of the fore- 

 going place, in blue-drift clay forty feet below the surface. 

 The same authority also reports a well at Milan, near the 

 summit of Kipley county, Ind., which is as far south as Cin- 

 cinnati, and about twelve miles northeast from the river, with 

 muck and wood fifty-four feet down in what is evidently 

 the true till of the region. 



In Hamilton county, Ohio, the late Colonel Charles 

 "Whittlesey reported thirty-five wells containing muck-beds, 

 leaves, or timber, from three hundred to five hundred feet 

 above the Ohio River, f That at New Burlington is certainly 

 in till. 



In Highland county, Professor Orton reports many cases 

 of the occurrence of such vegetable deposits. In the village 

 of Marshall, " eleven wells out of twenty reached a stratum 

 of vegetable matter with leaves, branches, roots, and trunks 

 of trees." Marshall is on the very limit of the glaciated 

 region. Similar instances were reported to me in the south- 

 ern part of Highland county and in Clermont county. 



In Eoss county, near Lattas, Mr. J. M. Connell reported 

 to me finding wood in a well, situated very near the extreme 

 limit of glacial action, and where it could not possibly have 

 been brought into position by means of water. The locality 

 is four hundred and twenty-five feet (barometer) above the 

 valley, just to the north, near Frankfort, and five hundred 

 and twenty-five feet above the valley of the Scioto River at 

 Chillicothe, ten miles to the east. The till is massed up 

 against and upon the margin of a rocky plateau, here facing 

 the north, in great quantities. The well described was in 

 this marginal till upon the highest land, and passed through 

 twelve feet of yellow clay, then through three or four feet 

 of blue clay, then ten feet of yellow clay, then gravel for 

 five feet. About thirteen feet below the surface there was 



* "Geological Report of Indiana," 1875, p. 172. 



f "Smithsonian Contributions to Knowledge," 1869, pp. 13, 14. 



