[Printed booklet] Specification respecting ships and vessels / by Charles, Earl Stanhope. [16p. Published by A. Wilson, London, 1807. Specification of Stanhope's patent no. 3011 of 16 Feb 1807 re 'Form, construction, and manner of building and fitting-out ships and vessels for the purpose of navigation, so as to counteract the danger arising from submarine bombs or explosions']