12 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 10] 



galvanized iron, and, at the after outboard corners, lead pipes with 

 suitable traps drain the water into the hold. The capacity of the ice- 

 boxes is about 3 tons each, 6 tons in all. 



COLD-ROOM. 



The after part of the space in the ice-boxes for two feet is partitioned 

 off by an athwartship bulkhead to form a cold-room or refrigerator, to 

 which access is gained by doors opening into the fore hold. Six-inch 

 openings at the top and bottom of the cold-room communicate with the 

 ice-lockers, and a circulation of air is induced as the warmer air of the 

 former rising passes above iuto the latter, becomes cooled by the ice, 

 falls and re enters the cold-room by the lower opening, to become 

 warmer again and rise as before. 



Rack-shelves to hold whatever is desired are fitted against the bulk- 

 head. 



STORE-ROOMS, MAGAZINE, BRIG, ETC. 



Forward of the berth deck, and separated from it by the collision 

 bulkhead, is a fore and aft passage-way to which access is gained by a 

 scuttle and stairs underneath the top-gallant forecastle. 



This passage opens forward into the yeoman's store-room, to the right 

 into the brig, lighted and ventilated by an 8-inch air-port, and to the 

 left into the dredging store-room, similarly furnished with light and air 



Through this passage, also, the chain pipes pass down and aft, tak- 

 ing the chain from the windlass to the lockers below, aud from the for- 

 ward end of the passage a scuttle and stairs lead down to the maga- 

 zine passage aud magazine, and to the fore peak below them. 



FORE HOLD. 



Below the berth deck the space from the cold-room aft is taken up 

 by the fore hold, steerage store-room, engineer's store-room, bread-room, 

 sail-room, and water-tanks. Access is gained by a hatch directly under 

 the fore hatch. . 



STEERAGE (PLATE VIIl). 



Opening from the after end of the berth deck is the steerage, con- 

 taining four double-berth state-rooms, 6 feet 6 inches in length, two on 

 each side, and a mess-room 13 feet in length between. It is lighted 

 and ventilated by an 8-inch air-port in each room, a 12-inch ventilator 

 cut through the deck just abaft the foremast, and the door opening 

 from the berth deck. Each room has an upper and lower berth 30 

 inches wide, a bureau, washstand, toilet racks, drawers, shelves, &c. 

 On the forward bulkhead of the mess-room is au open pantry. 



LOWER LABORATORY (PLATES IX AND X). 



Abaft the steerage, but separated from it by a water-tight iron bulk- 

 head, is the lower laboratory immediately below the upper laboratory, 



