within the River's Channels keep,
Affect no Change, nor venture on the Deep.
Or if they chance to roam, return again
With frighted Hast, and fly the hated Main.
Diff'rent the Conduct of the restless ;
He from his wonted Hole will slily Steal;
The fresher Streams, his native Home, forsake,
Despise the little Brook, or standing Lake.
Curious to sport in Depths unknown before,
And search the Hollows of the crooked shore,
Thro' secret Tracks he glides, and slimy Ways,
And wreaths his snaky Length thro' ev'ry winding Maze.