The open space I have been describing is the "Hyde Park" and "Rotten Row" of New Orleans, and the drive round it is one of the best roads I ever travelled; it is called the "Shell Road," from the top-dressing thereof being entirely composed of small shells, which soon bind together and make it as smooth as a bowling-green.

When the dressing thickens, begin adding the vinegar or lemon juice, drop by drop.