bought for 10 original Latin: "emptus Xtt"; likely indicating the purchase price in a currency of the time.

NEW METHOD

OF

FORTIFICA-

TION BY

SLUICES.

Described by Simon Stevin of Bruges.

An elaborate rectangular printer's mark. In the center is an oval decorative frame depicting a winged female figure representing Fame or Victory standing in a landscape, holding a palm branch in her right hand and a laurel wreath in her left. The border of the oval contains the Latin motto: "Letters bring forth immortality" original: "PARIVNT LITERÆ IMMORTALITATEM". The oval is surrounded by a dense decorative frame featuring various figures, including winged infants and adults, playing musical instruments such as lutes, violas, and a harp, all entwined with architectural scrolls and foliage.

IN ROTTERDAM,

At the house of Jean Waesbergue, at the Market, at the sign

of Fame. 1618.