These four pictures show the progress of a Canal car (or several cars) around the loop.  The top picture is facing out, away from the river.  The other three pictures are facing toward the river.  The second picture especially shows the run-down condition of the partially-abandoned waterfront, being used mostly for automobile parking.  (In more recent years, the waterfront has been completely redeveloped.)  In the third picture, at the right, we can see the switchman with his switch rod.  It was his duty to set the switch to send alternate cars into alternate tracks. — R. Hill