an integral part of the army, did not exist, and was introduced in much
later times. In the greatest pitched battle ever fought by Maurice, that
of Nieuport, he had but six field-pieces.

The prince also employed mortars in his sieges, from which were thrown
grenades, hot shot, and stones; but no greater distance was reached than
six hundred yards. Bomb-shells were not often used although they had
been known for a century.

Before the days of Maurice a special education for engineers had never
been contemplated. Persons who had privately acquired a knowledge of
fortification and similar branches of the science were employed, upon
occasion, but regular corps of engineers there were none. The prince
established a course of instruction in this profession at the University
of Leyden, according to a system drawn up by the celebrated Stevinus.

Doubtless the most important innovation of the prince, and the one which
required the most energy to enforce, was the use of the spade. His
soldiers were jeered at by the enemy as mere boors and day labourers who
were dishonouring themselves and their profession by the use of that
implement instead of the sword. Such a novelty was a shock to all the
military ideas of the age, and it was only the determination and vigour
of the prince and of his cousin Lewis William that ultimately triumphed
over the universal prejudice.

The pay of the common soldier varied from ten to twenty florins the
month, but every miner had eighteen florins, and, when actually working
in the mines, thirty florins monthly. Soldiers used in digging trenches
received, over and above their regular pay, a daily wage of from ten to
fifteen styvers, or nearly a shilling sterling.