58 



The Strepomatiixt: of the Fali>s of the Ohio. By R. Ellsworth ('ai.i.^ 



[Abstkact.I 



Tliis paper lists the various forms of the several genera which oeeiir at tl>i& 

 locality. Notes on habits and abniidaiice, on synonymy and geographic tlistribu- 

 tioii are included. The species found iHitnber only ten nominal one", and of these 

 several are synonyms. There nrr l)il)rK(gi'a|(liic references to original descrijitionfe 

 and to published figures. 



■ The ten species found, are distributed une(iually, among four genera. 



The conditions at the falls of the Ohio are well suited to this form of moUus- 

 can life, and they may be summed up in terms of the rich development of the 

 several species in the matter of nunilier and i)erfection of form. The locality i> 

 one of optimum conditions for the development of strepomatid life. 



The Swamps of Franklix Cointy. B.y M. H. Stoops. 



To one entering Franklin County l)y rail, he gains the impression that he is 

 far distant from a swam]). On either side of the "White Water Kiver are higiii 

 hills, which overlook the river valley. At times the train seems to be rushing 

 into one of the hills, when it suddenly glides around tlie side, leaving the traveler 

 to gaze at the side of the hill, which rises abrujjtiy to a bight of tliree liundred 

 feet. 



This river valley owes its origin to the glacial period. In this section of tlie 

 State the drift extends south into Kentucky. It is doubtful whether the ice ex- 

 tended farther south than this point. The melting of the vast quantity of ice 

 formed a mighty river that rushed to the south and cut out the White Water val- 

 ley. The present White Water Kiver was the main channel of the glacial river 

 for southeastern Indiana. This river wore through the rocks to a depth of over 

 five hundred feet.. Although the present hills are only from three hundred to four 

 hundred feet high. The valley has been tilled with drift to the depth of aliout 

 one hundred and fifty to one hundred and seventy-five feet at Brookville. On 

 either side of the valley, after ascending the hills, the county is comparatively- 

 level in places, except close to the tributaries of the river. Some parts of the 

 county are very level and can only be cultivated because of artificial drainage. 



'In the northeastern part of Franklin County was the swampy region. The 

 early settlers in this county ignored that section, they settled the river valley and 

 hills before any one had the courage to even try the highest portions of the swampy 

 region at that time, what is now P>ath Township, and the wealthiest township in. 



