became from the moment an almost impregnable fortress. Out of this
frozen citadel a strong band of well-armed and skilful musketeers sallied
forth upon skates as the besieging force advanced. A rapid, brilliant,
and slippery skirmish succeeded, in which the Hollanders, so accustomed
to such sports, easily vanquished their antagonists, and drove them off
the field, with the loss of several hundred left dead upon the ice.

"'T was a thing never heard of before to-day," said Alva, "to see a body
of arquebusiers thus skirmishing upon a frozen sea." In the course of
the next four-and-twenty hours a flood and a rapid thaw released the
vessels, which all escaped to Enkhuyzen, while a frost, immediately and
strangely succeeding, made pursuit impossible.

The Spaniards were astonished at these novel manoeuvres upon the ice.
It is amusing to read their elaborate descriptions of the wonderful
appendages which had enabled the Hollanders to glide so glibly into
battle with a superior force, and so rapidly to glance away, after
achieving a signal triumph. Nevertheless, the Spaniards could never be
dismayed, and were always apt scholars, even if an enemy were the
teacher. Alva immediately ordered seven thousand pairs of skates, and
his soldiers soon learned to perform military evolutions with these new
accoutrements as audaciously, if not as adroitly, as the Hollanders.

A portion of the Harlem magistracy, notwithstanding the spirit which
pervaded the province, began to tremble as danger approached. They were
base enough to enter into secret negotiations with Alva, and to send
three of their own number to treat with the Duke at Amsterdam. One was
wise enough to remain with the enemy. The other two were arrested on
their return, and condemned, after an impartial trial, to death. For,
while these emissaries of a cowardly magistracy were absent, the stout