502 THE CENTURY, 



tell how many times that servant has been in, at any 

 distance of time ; or how many times the lock has been 

 shot for a whole year together.&quot; He also says : u I was 

 told of a very fine lock made in this town (Stafford) 

 sold for twenty pounds, that had a set of chimes in it, 

 that would go at any hour the owner should think fit.&quot; 



73- 



A tranfmittible Gallery over any 

 Ditch or Breach in a Town-wall, 

 with a Blinde and Parapit Cannon- 

 proof. 



[A transmittible Gallery. ~\ The perusal of the ela 

 borately illustrated works of Vegetius, Vitruvius, Fludd, 

 and other writers of the sixteenth and seventeenth 

 centuries, would abundantly furnish the Marquis of 

 Worcester with hints to show what had been done in 

 such warlike machinery, and to stimulate him to make 

 improvements. Such an invention as the present one, 

 with others of a like magnitude, he probably never 

 proved practically beyond satisfying himself by means 

 of well made models, that whatever modifications he 

 proposed to introduce were mechanically practicable. 



74- 



A Door, whereof the turning of 

 a Key, with the help and motion of 

 the handle, makes the hinges to be 

 of either fide, and to open either 

 inward or outward, as one is to 

 enter or to 4 go out, or to open in 

 half. 



* to omitted. 



