As they will come directly to the wharf st Rock ettH, the neeeasity for transhipment is avoided. For expedition snd security, this route, as past experience has proven, wHI b« found the best in every respect. Insurance, if at sll deemed neces i aary, can be effected on the moat moderate terms. The frequent changes, too, incident to the " In i land Sea" or Chesapeake Bay route, which Is so