150 



UNITED STATES* 



S50 yards wide, falls perpendicularly about thirty 

 feet. The descent being considerably increased by 

 the rapids below, the falls appear higher than they 

 really are, when viewed at a distance* 



The Illijiois* 

 The river Illinois is a noble branch of the Missis- 

 sippi, and, according to capt. Hutchins, furnishes a 

 communication with lake Michigan, by the Chi- 

 cago river, and by two portages between the latter 

 and the Illinois river, the longest of which does not 

 exceed four miles. The country through which it 

 flows is extremely rich. It empties into the Mis- 

 sissippi in lat. 38 deg. 40min. long, 92 deg. 12 min. 

 one hundred and seventy-six miles above the Ohio. 



The Ohio 



Is formed by the confluence of the Alleghany and 

 Monongahela, below Pittsburg. 



From Pittsburg, it takes a north-weSt course for 

 about twenty-five miles, then turns gradually to 

 west-south-west, and pursuing that course for about 

 five hundred miles, winds to the south-west for 

 nearly one hundred and sixty miles, and, at length, 

 empties into the Mississippi (according to Hutchins) 

 eleven hundred and eighty-eight miles below Pitts- 

 burg, and nearly the same distance above New Or- 

 leans, in lat, 36 deg, 43 min. north. It is very crook- 

 ed, but its general direction is south 69 deg. west. Its 

 common width is from five to fifteen hundred yards ; 

 but, at the rapids and near the mouth, it is consider- . 

 ably wider. 



The numerous islands interspersed in this river^ 



