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
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 : … Sic: pro fomite, I. de rerona; 14/2.] VALTURIUS. 51 Then follow various modes of casting stones in slings, by the aid ofmechanical powers, or machines. The stone usually appears of con-siderable magnitude. We have next an armed galley, of the manner ofarming the mast and shrouds of which, the…
