A Voyage to 



Rock, in which is dug a Ditch, between 4 and 5 Fathoms 

 deep, and 10 or 12 in Breadth. At the Bottom of the 

 Ditch, all along the Efcarpe, there is a Row of Wells or 

 Pits, 2 or 3 Fathoms fquare, and 10 or 12 Foot deep, 

 whkh are fo near one another, that they are only parted 

 by a Traverfe of the fame Rock, 2 or 3 Foot thick. Be- 

 fore the Curtin, where the Gate is, thofe Rows of Wells 

 or Pits are triple, and advanced within 4 or j Fathoms 

 of the Counterfcarp. 



The Depth of the Ditch, the Reinforcement of thofe Pits, 

 the Height of the Walls, and the Solidity of the Stonework, 

 make the Portugueze fancy, that their Caftle is impreg- 

 nable ; and the rather, becaufe the Spaniards flood a Siege 

 of three Years in it, tillat laft a Supply of 6000 French ob- 

 liged them to abandon the Place, and get away by Sea, 

 where they were taken. 



By this may be judg'd what the Strength of the Portugueze 

 was, and the manner of their Attacks ; for in the firft place, 

 chat Fortrefs has no other Outworks, befidesa Horfe-fttooe 

 next the Port, and a little Cover'd-way, now without Pa- 

 lifadcs ; the Glacis whereof, at the Sailiant Angle of the 

 Baftion next the Town, is fo fteep, that it might well 

 ferve for a Rideau, or Covert, to take the Ditch by Sappe ; 

 and the more, for that it is moftly of Earth thrown up 

 together, and the Rock under it feems to be very cafy to 

 cut. 



Then the Ditch is only defended by three Pieces of Can- 

 non ; for the Flanks of the Baftion are fo fmall, that they 

 can hold no more; that is, one in the lower Flank, or 

 Cazematte, one on the Back Flank above, and one in the 

 Epaulment. 



At the Entrance into the Fort, under the Rampart, is a 

 good handfome Corps de Garde, vaulted, but not Bdmb 

 Proof, in my Opinion. I did not hear there was any thing 

 elfe under Ground, befides the Powder Magazine. 



In the Caftle there are two fine Cifterns ; and, in cafe of 

 Neceflity, theycan alfo have Water RomS. Anthony* $ Spring, 



which 



