¶Of towers mou••ble. Chap. xvij.
TOwers are a kinde of engines ioyned together of bea∣mes and boardes, after the similitude of buildinges. And to kepe so great a worke from fyringe by the en∣nemyes: it is most dilligētly fenced on all partes with rawe hydes or tylt clothes: for the heighte of it is proportionable to the breadth, for sometime they be xxx. foote broade by the square, sometime xl. or l. But the tallenes or height must be such, that they may passe in height, not onlye the walles, but also the towers of stone. These towers must haue many wheeles cunninglye made, by the easye rolling of the which so great a frame may be moued. And it is present daunger to the Cittye, if the tower come once to the walles. For it hath with it a nomber of ladders & diuers wayes maye set men into the towne. For in the lower part it hath the Ramme, wt the violence of which it beates downe the walles About the middle it hath a bridge made of two beames and hedged wt roddes which may quicklye be brought forth, & set betwene the tower and the wall, & the men of warre going by ye same out of the engine passe ouer into the Cittye & take the wal∣les In the higher partes of the same tower, be placed pyke∣men and Archers, whiche from an highe maye ouerthrowe the defenders of the Cittye, wyth pykes arrowes and sto∣nes Which being done, the Cittye is taken without delay.