R.S.S. 'WILLIAM SCORESBY' 177 



division on the fore and aft centre line, and two wing bunkers, one each side of the 

 boiler space. This arrangement enables oil to be used from the cross bunker in the first 

 place, thus easing the vessel's trim when making a long passage such as that from Cape 

 Town to South Georgia. Directly abaft the fuel bunkers, and on each side of the boiler, 

 freshwater feed tanks are constructed, having capacity for a total of 1 1 tons of feed water 



The wardroom accommodation is situated immediately abaft the engine room, between 

 the engine-room bulkhead and the aft peak bulkhead. The wardroom occupies the port 

 aft portion of the space and, for a small ship, is very commodious: it is furnished and 

 panelled in polished mahogany. Two single-berth cabins (those of the chief engineer 

 and chief officer) are placed on the starboard side of the ship and open into the ward- 

 room. Forward of the wardroom a lobby is provided, giving access to the cabin of 

 the senior scientific officer on the starboard side and to that of the captain on the port 

 side. At the forward end of the accommodation space there is a small store room and 

 a refrigerating chamber on the starboard side, and on the port side a bathroom. Between 

 these is the wardroom pantry, with a small service lift communicating with the galley 

 on the main deck. 



Below the after end of the wardroom accommodation a small aft peak tank is provided, 

 having a capacity for about i ton of fresh water. The remainder of the space below the 

 accommodation is divided into provision stores, bonded locker and freshwater tanks, 

 the latter having a total capacity of 800 gallons. 



Machinery. The main boiler is practically amidships, with the main engines im- 

 mediately abaft it, separated by a screen bulkhead. The boiler is of the cylindrical 

 marine type, 15 ft. 6 in. in diameter and 11 ft. 6 in. long, working at a pressure of 180 lb. 

 per square inch. The main engines are of the ordinary triple expansion surface con- 

 densing type, having cylinders 16, 27, and 40 in. in diameter with a common stroke of 

 30 in. They are designed to develop 1050 h.p. when working at 120 revolutions per 

 minute. 



The oil-fuel installation is of the Wallsend-Howden type ; the gear is in two separate 

 units, either of which is capable of supplying the necessary fuel independently. Forced 

 draught is supplied by means of a Howden forced-draught fan fitted in the engine room, 

 with air casings trunked through into the stokehold. 



The auxiliaries in the engine room are as follows : a centrifugal circulating pump with 

 an all gunmetal casing driven by a single cylinder steam engine; a Weir's multiflow 

 surface feed heater, using exhausts from auxiliaries ; a Weir's feed pump with automatic 

 feed control; a Caird and Rayner's lo-ton evaporator and distilling plant, and a Caird 

 and Rayner's feed-water filter. The air pump, main feed pumps and bilge pumps are 

 driven by levers from the main engines. 



