iO BULLETIN OF THE LABORATORIES 



tributary to the Ohio, have in several instances been greatly enlarged 

 at the expense of streams tributary to the southern end of the Scioto 

 Basin. A reference to the accompanying map will show that the pres- 

 ent drainage systems are very abnormal. There are suggestions of still 

 greater' changes not yet worked out to a demonstration. The Little 

 Kanawha, with also several smaller southern tributaries of the Ohio, 

 and a considerable portion of the Ohio itself above Huntington, may 

 have discharged somewhat directly westward to the Scioto Basin across 

 southern Ohio, instead of taking the roundabout course by Wheelers- 

 burg. I have only examined a part of the district which would be 

 traversed by such a line or lines of discharge, so cannot speak with the 

 confidence that I do of the other changes noted, but the following 

 statements may be made. 



It is thought that this westward flowing system may have received 

 drainage lines from nearly as far southwest as Teases Valley, and that 

 in developing the present Ohio System a col may have been crossed by 

 the Kanawha near Winfield a few miles north of St. Albans, and by 

 the Ohio only a few miles above Huntington. 



It is evident that the great part of the present drainage basin of 

 Symmes Creek was once tributary to the Scioto through Salt Creek, 

 there being a broad abandoned channel leading north past Camba, con- 

 necting its head waters with Salt Creek, near the city of Jackson. 

 (See map, Plate II.) 



A probable change is to be found in the lower Scioto Valley. This 

 may have once received the several small streams which flow in a north- 

 easterly course and enter the Ohio nearly opposite the mouth of the 

 Scioto, and then have carried the waters north to join the old Kanawha 

 at Waverly. This small drainage basin would include also that portion 

 of the Ohio (reversed) between Buena Vista and Portsmouth. There 

 is a bare possibility, however, that the Kanawha System turned south 

 at Waverly, and followed down the Scioto and Ohio. 



The northern part of the Brush Creek drainage basin certainly 

 was once tributary to the Scioto, as indicated by Messrs. Tight and 

 Fowke in a former bulletin, and it is possible, as suggested by Professor 

 Tight, that the entire Brush Creek drainage basin once had northward 

 discharge into the Scioto Basin, carrying with it a small section of the 

 Ohio between Vanceburg, Ky., and Manchester, Ohio. 



Concerning the direction of discharge for the old Kanawha Sys- 

 tem from the south end of the Scioto Basin, but little is known. The 



