37G 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
The storage rooms are constructed similarly to the storage rooms in ice-aud-salt 
freezing-houses, the only difference being that circulating pipes are substituted for 
the ice-aud-salt receptacles. The pipes in the storage rooms are usually larger, but 
are not so numerous as in the freezing-room. They are arranged at the ceiling, and 
sometimes about the upper sides also. 
The freezing and storage rooms have well-insulated Avails, ceiling, and floors 
similar to the storage rooms using ice and salt as a freezing agency. The walls are 
sometimes IG or 18 inches thick, filled with sawdust or planer shavings; but usually 
they are made up of successive layers of boards, paper, mineral wool, and air space. 
In one of the most recently constructed freezing establishments, that of the Cincin- 
nati Oyster and Fish Company, the walls are constructed as follows: SeA^en-eighth- 
iuch boards, insulating paper, J inch boards, 2-inch air sjiace, ^-iuch boards, two sheets 
of insulating paper, |-inch boards, 1 inches of mineral wool, §-inch boards, insulating- 
paper, and J-iuch beaded boards. In the same establishment the ceiling is insulated 
by ^-inch boards nailed against the joists, two sheets of insulating paper, l-iuch 
boards, 2 inches of mineral avooI, J-inch boards, insulating paper, and g-inch boards. 
On top of the ceiling and between the joists there are 3 inches of mineral avooI, ^-iuch 
boards, insulating paper, and g-inch boards. The floor is insulated by nailing | 
by 3-inch strips between the joists and close to the bottom, on top of which are |-iuch 
boards, insulating paper, and -4-inch boards, the whole being pitched throughout so 
as to make it perfectly air-tight. Then come 2 inches of air space, 4-inch boards, 
insulating xiaper, g-inch boards, 4 inches of mineral wool, §-inch boards, insulating 
Xiaper, J-iuch boards, 3 inches of concrete, and 14 inches of cement. Kesting on the 
cement floor are | by 3-inch oak racks, to xiermit a free circulation of air under the 
fish stored in the room. 
In 1896 there was erected at Goble, Oregon, a freezing and cold-storage i)lant 
differing from any other in the United States, in that cold air is used as the freezing 
medium. There are similar xilauts at Montreal and Quebec, and there are several 
used in Great Britain and Australia for refrigerating beef and mutton. 
The following is a description of the Goble establishment: 
The IjiiLldiug is 100 feet long by 52 feet wide, exclusive of the boiler and engine rooms, -which are 
nu<ler another roof adjacent to the main structure. The lirst floor is Avell insulated and divided into 
8 storage compartments insulated from each other, the dimensions of Avhich are 40 feet in length, 10 
feet in width, and 10 feet in height, the floor space within each being occupied by two X'arallel car 
tracks with an alleyway between. The floors of these rooms consist of 16 inches of sawdust, 3 x^ieces 
of |-iuch hard I'elt and 5 air spaces, floored over with 1-inch pilaiik; aird the walls have two thick- 
nesses of felt and 4 air spaces. The remaining x^ortion of the width of the building, 8 feet on the 
inside, is occnxiied hy a corridor, in which is a car track with suitable turntables leading to each 
track in the storage rooms; and the remaining 9 feet net in the length of the building is taken up by 
an elevator, stairway, and tool room. On the fourth floor there is a tank, 22 feet long and 6 feet wide, 
filled with brine cooled by ammonia circulation. In this tank there are 5 disks, 4 inches in diameter, 
revolving on axles running across the tank. The air from the freezing and cold-storage rooms is 
collected and forced over the revolving disks as the brine droxis off, and is then returned by other 
channels to the freezing and storage rooms. 
When the fish, consisting xn-iucipally of salmon, are received at the dock, they are washed, wiped 
dry, and placed on cars fitted ipA with 7 galvauized-iron shelves, 5 feet 4 inches long and 3 feet wide, 
the capacity of each car appi-oximatiug 1,000 pounds, and its cost, with the necessary shelves, about 
$34. When the shelves are filled, the cars are wheeled into the corridor leading to the freezing rooms, 
and then to the proper compartment, where, still remaining on the cars, they are frozen by the cold 
air forced over and among them. Each room has caxiacity for 7 cars on each track, or 14 cars in all. 
