[7] U. S. FISH COMMISSION STEAMER ALBATROSS. 9 



ship leugtli, gradually reduced to -^g inch forward aud aft. The remain- 

 ing side plating is -^^ inch thick, except the strakes around the shaft- 

 pipe, which are of ^ inch and are doubled, and the bilge-strake, which 

 is T% inch thick for two-thirds the length amidships, gradually reduced 

 forward and aft to -^^ inch. 



The bottom between bilge and garboard strakes is f inch thick for 

 three-fifths the length amidships, then gradually reduced to -^ inch for- 

 ward and aft. 



All butts of plating, keelsons, and stringers are double chain riveted, 

 and the longitudinal seams lapped and single riveted. 



All plates are long enough to cover at least six frame spaces, except 

 short plates at the ends ; and there are at least two strakes between 

 butts falling between same frames. All edges and butts are planed. 



Butts of garboard-strakes are at least two frame spaces apart, as also 

 are those of sheer-strakes and deck stringers. All butts of plating are 

 properly shifted. 



RAIL. 



The rail is of white oak, 10^ by 3J inches, let down to a fair bearing 

 on the bulwark angle-iron, hook-scarfed and edge-bolted through scarfs. 



MAIN DECK (PLATE II). 



CABIN (plate III). 



Of the structures which rise above the main rail the poop cabin ex- 

 tends 30 feet forward from the stern-post, is the whole width of the vessel, 

 and 7 feet 3 inches high from deck to deck. It contains two state-rooms, 

 an office, pantry, and bath-room, besides lockers, &c., and is supplied 

 with light aud air from eleven air-ports (five on each side and one in 

 the stern), two windows, and three doors opening forward, and one sky- 

 light 6 feet by 5 feet overhead. 



DKCK-HOUSE. 



Forward of the cabin there is a clear space of 16 feet containing the 

 wardroom skylight, and from which the gangway ladders lead over 

 the side. Next comes the deck-house, 83 feet in length, 13 feet 6 inches 

 in width, and 7 feet 3 inches in height. It is built of iron from the fun- 

 nel aft, sheathed inside and out with wood, and fitted with iron storm- 

 doors. From the funnel forward it is of wood, all fastenings, nails, 

 screws, &c., being of galvanized iron. Beginning aft it is divided into 

 the following apartments : 



1. ENTRANCE TO WARDKOOM. 



Six feet in length and the whole width of the house. One window on 

 each side furnishes light and air, and two doors opening aft give access 

 to the stairway leading to the wardroom below. 



