44 THE PREGLACIAL DRAINAGE OF OHIO. 



It may not be improper to say a few words here concerning 

 the continuation of the channel which was mapped last year 

 as far as Anna, Shelby county. Southeast from this village no 

 deep wells have been drilled and so the continuation of the 

 channel cannot be shown with certainty. It may be recalled, 

 however that at the town St. Paris, Champaign county, a drill 

 passed through 530 feet of drift without reaching rock, while 

 east and west of this place the drift is comparatively shallow. 

 The distance of St. Paris from Anna is more than 20 miles and 

 the writer is loth to connect these two points without records 

 at intermediate places. However south from Anna the drift 

 shallows and at Sidney the limestone appears in the river bed. 

 East also from Anna the drift becomes thinner, as is shown by 

 the deep well at Quincy. While these points are not conclu- 

 sive they indicate that the channel cannot extend either south 

 or east from Anna, while the great depth to the southeast indi- 

 cates that it extends in that direction and that the channel at 

 St. Paris is a continuation of the one traced as far as Anna. 



A few words remain to be said concerning the channel in 

 Indiana. In the report published a year ago. and to which 

 reference has already been made, the channel was traced across 

 Jay and Adams counties into Harrison township, Blackford 

 county. It enters this township in section 20 and passes through 

 sections 26, 35, 34 and 33. The maximum depth of drift re- 

 ported is 430 feet, while outside the channel the drift is very 

 shallow, not more than 50 feet in places. Near the southwestern 

 corner of this township the channel curves to the northwest and 

 enters Washington township, where depths of drift of 438 and 

 440 feet were found in sections 20 and 17. Many other deep 

 drives are reported in this locality so that the channel can be 

 definitely located. Continuing in the northwesterly course the 

 channel passes from Blackford county and enters Monroe town- 

 ship, Grant county, where, in the southeast quarter of section 

 12, 430 feet of drift were found. The channel can be traced 

 through sections 12, 13, 11, 10, 3 and 4 of this township, and 

 then through sections 33, 32, 31 and 30 of Van Buren township. 

 Grant county. In the latter township the depth of drift appears 

 smaller and accordinc: to M. W. Page of the Ohio Oil Com- 



