g Boston
April 9. Having seen nothing between February 5 and March 19, she then
began to meet sails, speaking eight between the latter date and her
arrival. Most of these were Americans, homeward bound from the Spanish
peninsula; the others neutrals.[18] The conclusion is evident, that
the British were keeping their trade well shepherded in convoys. If a
ship like the "Chesapeake" struck one of them, she would probably have
to fight the escorting vessel, as the "Wasp" did the "Frolic," while
the merchantmen escaped; but the chances were against her seeing
anything. Another evident conclusion, corresponding to the export
returns already quoted, is that the enemy had not yet shut down upon
the access of American merchant ships to their own coast.
This process was gradual, but steady. It is necessary to keep in mind
the distinction between a blockade, in the loose use of the term,
which closes a port only to the ships of the hostile nation, and the
commercial blockade which forbids neutrals as well. The former may be
intermittent, for the mere fact of war authorizes the capture of the
belligerent's shipping, wherever found; hence to intercept them at the
mouths of their own harbors is merely a more effectual method of
carrying out the measure. A blockade against neutrals requires the
permanent presence, before the blockaded port, of a force adequate to
make the attempt to enter or leave dangerous. For this many more ships
are needed. The British ministry, desirous chiefly to compel the
United States to peace, and embarrassed by the gigantic continental
strife in which it was engaged, sought at the outset to inflict such
harassment on the American coast as would cost the least diversion of
strength from the European contest. An ordinary blockade might be
tightened or relaxed as convenience demanded; and, moreover, there
were as yet, in comparison with American vessels, few neutrals to be
restrained. Normally, American shipping was adequate to American
commerce. The first move, therefore, was to gather upon the coast of
the United States all cruisers that could be spared from the Halifax
and West India stations, and to dispose along the approaches to the
principal ports those that were not needed to repress the privateers
in the Bay of Fundy and the waters of Nova Scotia. The action of these
privateers, strictly offensive in character, and the course of
Commodore Rodgers in sailing with a large squadron, before explained,
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