EXPLANATION OF THE PLATES. 497 



COPPER. The vessel to be docked, and the bottom coppered with 32, 28, and 24 oz. 



CALKING. The whole of the calking to be done in a proper manner, the oakum to be good and 

 sound. The bottom to be plyed over with tar, and well prepared to receive the copper. 



JOINER'S WORK. To emboss the vessel within and without board in a proper manner ; build all ac- 

 commodations for passengers in the saloon under the main deck ; the doors to be mahogany, and 

 the sides of the cabins to be panelled with mahogany. To build accommodation on the fore 

 platform with deal as may be directed by the plans designed for that purpose. 



PLUMBERS, GLAZIERS, PAINTING. To lead the taffrail under the quarter galleries, cheeks of the head, 

 and all air scuttles ; fix all scuppers ; find and fit two of Downton's water-closets abaft, and one 

 common hopper on deck ; the skylights, scuttles, and lights in the stern to be glazed with the 

 best crown glass. The whole of the weather work and under part of the deck to have three 

 coats of good oil colours ; the fore cabin to be painted in common colour. 



MASTS, YARDS, BLOCKS, &c., &c. To supply and fit all masts, yards, and blocks, one suit of sails, 

 and bend them to the yards, two best bower anchors, one stream anchor, one kedge, and one 

 grapnel, two one and one sixteenth chain cables, 90 fathoms each ; one seven-eighths stream 

 cable, 90 fathoms. Supply and fit all chain rigging, stays and cordage, necessary to rig the 

 vessel, fit tarpaulings to the hatchways, awning stanchions, and one awning to quarter-deck ; 

 supply a buoy and buoy-rope ; two boats with one set of oars, and a canvass cover. Supply a 

 fire-hearth to cook for 100 men ; iron tanks to contain about 2,000 gallons of water ; a patent bin- 

 nacle, and a double lamp in the saloon. 



SPONCINGS. To be two inches thick, of Baltic fir ; the timbers of English oak sided 6 inches, and bolted 

 in the heel through the side, with one bolt of three quarters of an inch in diameter. A thick strake 

 of Baltic fir let on one half of the moulding of the sponcing timber to meet the water-way, a 

 piece of felt being first placed in the joint, and bolted through each other, with one bolt between 

 every timber five-eighths diameter, with a ring well clinched on each end ; the beam ends 

 secured to the strake by a drawtort dog bolt secured with a bolt and one nail. 



For a Description of the Engines, see Plates XLIII. to XL VI. 



PLATES CXL, AND CXI. A. 



ENGINES OF THE STEAM SHIP TIGER. 



The engines of this vessel were manufactured by Edward Bury,Esq., and fitted with 

 Hall's patent condensers, and the description of the parts will be understood by 

 reference to that of the engines of her Majesty's steam ship Mageera, Plates 

 XLIX. and L. 



The Tiger is a Hull built vessel, and belongs to the St. George Steam Packet 

 Company ; her burthen is 800 tons ; her engines are of 300 horse power ; she is at 

 present stationed between Hull and Hamburgh ; and her equipment, in every respect 

 does the highest credit to the port of Hull and to the owners. The following 

 extracts from Captain Knocker's journal will show the leading points of her 

 passages : 



3 R 



