HIVERS. 



179 



velocity, and the current in the channel, between 

 the island and the fast land of Pennsylvania, being 

 thrown off the projecting rock below the ishind, 

 erosses an extremely rugged bottom, and meeting 

 the current from the east side of the island, is thrown 

 into great confusion, and often causes the destruction 

 of deeply laden boats; and rafts of boards acquiring 

 very great velocity in a diagonal direction, become 

 ungovernable, and sometimes rush upon the rocks, 

 near the foot of the falls, upon the Jersey shore, and 

 are broken to pieces. 



The Delaware receives the Lehigh at the town of 

 Easton, about 60 miles north of Philadelphia, and the 

 Lexawacsin in Wayne county, 114 miles above Eas- 

 ton, at Cedar falls ; besides many creeks. Six miles 

 below the city of Philadelphia, it receives e river 

 Schuylkill, about one mile north of fort Mifflin. 



The bay and river Delaware are navigable from 

 the sea up to the great or lower falls at Trenton, 

 155 miles ; and are accommodated with a lighthouse 

 on cape Henlopen, and with buoys and piers, for the 

 direction and safety of ships. The distance of Phi- 

 ladelphia from the sea is about GO miles across the 

 land, in a south-east course, to New Jersey coast ; 

 and 120 miles by the ship channel of the Delaware* 

 So far it is navigable for a seventy-four gun ship. 

 Sloops go 35 miles farther to Trenton falls. The 

 river is navigable for boats that carry eight or nine 

 tons, 100 miles further; and for Indian canoes, ex- 

 cept several small falls or portages 150 miles. The 

 tide sets up as high as Trenton falls, and at Phila- 

 delphia rises generally about five or six feet. A norlli- 

 east and east wind rivses it higher. 



