EXPLANATION OF THE PLATES. 479 



ner to meet the sheer strake from inside ; felt is placed between the joint vertically, 

 the whole bolted together with bolts driven horizontally and well clenched on a ring 

 at each end ; the under side of the water-way is scored dovetail about one inch and a 

 half over the beam ; on the upper part of the sheer strake and water-way, felt is laid, 

 and on that a plan sheer or gunwale placed, which is bolted through the water-way 

 and plan sheer in a vertical direction and clenched with a ring on each end of the 

 bolt to keep it down and make it firm. The sponcing timbers run up to the rough 

 tree rail, their heels stepping on a thick strake worked in the side of the vessel 

 and well bolted, forming a rabbet which receives the planking, making a secure 

 artificial topside in addition to the common topside of the ship. Vide section, 

 Plate GIL 



The engine bearers are dowelled and bolted firmly through the bottom, scored on 

 the under part to receive the nuts for securing the hold down bolts which prevent 

 their passing through the outside plank and creating danger. 



Plate CI. shews the plans of the upper and lower decks, under which there is a 

 fore and after platform, exclusive of her store-rooms and magazine ; on these platforms 

 there is provision made for berthing in hammocks 145 men in addition to her ship's 

 company, which are berthed in like manner on the lower deck, the fore side of the 

 engine-room ; on the aft side the officers' cabins are shewn ; the planks of the lower 

 decks, both afore and abaft, are laid athwartships, rabbeted into the sides of the 

 beams, which are considerably less in number than if the deck were laid in a fore 

 and aft direction on beams as usually done ; the beams are secured to the side by iron 

 knees. 



The upper deck is laid in a fore and aft direction on substantial beams, made par- 

 ticularly strong on the fore and aft parts with carlings well pillared under the deck 

 in wake of the great guns, which are both of ten inches calibre, and worked on a 

 carriage and slide with pivots, which admits of their being turned in any direction 

 that may be required ; the bulwarks above the plan sheer are light, the fore and aft 

 parts fitted to drop in several pieces by iron stanchions, forming a hinge, so that the 

 whole or any part required can be let down clear to admit of the guns being 

 run well out, that their muzzles may not interfere with the side of the ship when 

 firing. 



Her tiller is under the upper deck that it may not obstruct the working of the guns; 

 an iron plate is attached to the head of the rudder, with three holes, one in the centre 

 and one on each quarter ; an iron plate is fitted on the head of the stern-post, and 

 when the rudder is required to be secured in midships, a pin is dropped into the 

 centre hole of the plate on the rudder, which passing through this and the plate on 

 the post, fixes the rudder immediately in midships ; the same may be done by re- 



