THe fortificationes of citties and castelles is principally groun∣ded a gainste the offence of greate ordenance, and alsoe de∣fended with the same and with other fyrie weapon: It is to be considered that the artillery is devided and differensed into greatnes or Zices Royall, and into lesher zices.
Of the zice Royall is that peece that shooteth of seavintine pound upwarde, as is the culverrin the quarter cannon: the demy cannon, the cannon and double cannon, the pedrero basalisco and such like. And for the lesser zice the diference is to be vnderstoode that all pi∣ces that shoote bullet from seavintine pounde weighte downewardes as is the demiculverin, the saker, the minnon, the falcon and falco∣nett even to the rabinet and arcabuse de crocke.
The artillery from whence a citty, forte or stronge place may re∣ceive moste offence and domadge, is that of the greatest zice, for of the lesher zice there is no greate doupte to by had, sith that the de∣miculverin can do no greate offence nor domadge, and alsoe from Page [unnumbered]〈1 page duplicate〉Page [unnumbered]
The bulwarkes are uppon the angles or corneres of the forme of the citty or forte, and of such distance and due proportion, as shall seeme to the skilfull Inginer, and they oughte to by made optouse or blunte, and not sharpe, for so they are more stronge and capable.
The partes of the bulwarke are the travesses or flankes orechion, pum, garde, or shoulder, the fronte or curtine, the conter-fronte or spurres, the pestilles or parapettos, the place or roome for the artille∣ry. The bulwarkes as i saied are placed within the angles where place is to be made reddy for the artillery, and to mounte the same in suche a heighte, that it may discover the campe or circuid on every where in at much as is posible.
It is to by considered that the curtines of the bulwarke shall stan∣de in suche sorte that they may be touched or beaten from the firste corner from whose flanke or traves it taketh his defence, and the line or pointe is to be taken som whate more from the flanker, and in su∣che distance agreable to the greatnes of the bulwarke, soe acordinge to the greatnes of the same, the measures are to by increased or de∣minised, observinge the due proportion required; It is necessary to make in the bulwarkes certaine issues, the whiche are made in the par∣te that looketh towardes the flanker or travess, thies are moste neces∣sarie to put men oute for the ditch. The conterfortes and apertenan∣ces of the bulwarck, have alsoe theire measures and proportiones, the whiche i leave to avoide prolixitie, and because that they may by mo∣re or lesh acordinge the discresion and plates of the curiouse and per∣fecte Inginer. The Cavallero within side adjoyninge to the curtine in the mideste of them are builded, and from suche Cavalleros are the curtines or walles of the bulwarke defended, and alsoe the fielde, and for this cause are the bulwarkes wonte to by made, and to raise them so high, that they may discover well the places of theyre execu∣tiones.