ened together with strong cables
and iron chains, but at a distance from each other of about twenty feet
to allow a free passage to the stream. Each boat, moreover, was moored
with two cables, both up and down the stream, but which, as the water
rose with the tide, or sunk with the ebb, could be slackened or
tightened. Upon the boats great masts were laid which reached from one
to another, and, being covered with planks, formed a regular road,
which, like that along the piers, was protected with a balustrade. This
bridge of boats, of which the two piers formed a continuation, had,
including the latter, a length of twenty-four thousand paces. This
formidable work was so ingeniously constructed, and so richly furnished
with the instruments of destruction, that it seemed almost capable, like
a living creature, of defending itself at the word of command,
scattering death among all who approached. Besides the two forts of St.
Maria and St. Philip, which terminated the bridge on either shore, and
the two wooden bastions on the bridge itself, which were filled with
soldiers and mounted with guns on all sides, each of the two-and-thirty
vessels was manned with thirty soldiers and four sailors, and showed the
cannon's mouth to the enemy, whether he came up from Zealand or down
from Antwerp. There were in all ninety-seven cannon, which were
distributed beneath and above the bridge, and more than fifteen hundred
men who were posted, partly in the forts, partly in the vessels, and, in
case of necessity, could maintain a terrible fire of small-arms upon the
enemy.

But with all this the prince did not consider his work sufficiently
secure. It was to be expected that the enemy would leave nothing
unattempted to burst by the force of his machines the middle and weakest
part. To guard against this, he erected in a line with the bridge of
boats, but at some distance from it, another distinct defence, intended
to break the force of any attack that might be directed against the
bridge itself. This work consisted of thirty-three vessels of
considerable magnitude, which were moored in a row athwart the stream
and fastened in threes by masts, so that they formed eleven different
groups. Each of these, like a file of pikemen, presented fourteen long
wooden poles with iron heads to the approaching enemy. These vessels
were loaded merely with ballast, and were anchored each by a double but
slack cable, so as to be able to give to the rise and f