68 ICHTHYOLOGIA OHIENSIS 



at Pittsburgh is 1350 feet, being wider and deeper 

 than the Alleghany, It flows in a deep valley, is 

 subject to sudden rises, and has a turbid but navi- 

 gable stream. 



3. Mahoning or Big Beaver. Rises near Lake 

 Erie, in latitude 42, and runs south through Pennsyl- 

 vania, emptying on the right side of the Ohio, of 

 which it is one of the smallest branches, and is 

 even sometimes called a Creek, although its direct 

 course is 80 miles long, and the natural nearly 140, 

 or about 163 English miles, being very crooked; 

 but it is shallow, full of falls, and hardly navigable. 

 It is formed by the junction of the Shenango and 

 Neshanock. 



4. Muskingum. It flows through the state of 

 Ohio, in a southerly direction, about 100 miles, but 

 being very winding its natural course is 150 miles or 

 about 175 English miles. It rises in a small lake of 

 the Ohio ridge, which separates the bason of the 

 Ohio from that of Lake Erie, near the 41st degree of 

 latitude, and it joins the Ohio at Marietta. It is a 

 large and navigable river, although it has a large 

 rapid or fall at Zanesville and some other smaller 

 rapids elsewhere. At the mouth it is 750 feet wide. 

 It flows through a large valley, and receives four or 

 five large branches, called Wills, Licking, Mohecan, 

 &c. 



5. Little Kenhaway. It rises in the Laurel 

 hills, and flows through Virginia in a N. W. course 

 of 90 miles, or 140 in a natural course, equal to about 

 163 English miles. It empties at Parkenburg, is 

 partly navigable and has several small branches. 



6. HocKHOCKiNG. Flows through Ohio. Direc- 

 tion, S. E. length seventy five miles, by the real course 



