Bibliotheca Spenceriana; or, A descriptive catalogue of the ... library of George John, earl Spencer (1814)
Spencer, George John Spencer, Earl, 1758-1834, Dibdin, Thomas Frognall, 1776-1847, John Rylands Library · London · leaf 63
50 MISCELLANEOUS. [/. of Verona; 1172. The recto of the ensuing leaf is blank. Cannons of various forms,and applied in various ways, by means of elevations, immediatelysucceed. From these I shall give a specimen of what would be called,in modern warfare, a bomb: the text preceding it is as follows:… … One of the modes of elevating cannon, represents eight heavy gunapointing various ways, upon a circular platform. A less formidableelevation is that which exhibits the following upon a cylindrical tower,of which the surface only is given :
