ICE-HOUSES.

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sheathed on top with 1 in. rough hemlock boards. The roof is covered with r-in. tongued andgrooved hemlock boards, not over 8 in. wide. The ventilator is formed of 4-in. X 4-in. sills, 3-in.X 4-in. plates; 3-in. X 4-in. rafters, spaced 39 in.; and 3-in. X 4-in. studs, spaced 39 in. Thesingle outside doors are 5 ft. 8 in. high X 4 ft. 4 in. wide. The frames of the outside doors are madeof 6 in. X 14 in. stuff, and those of the inside doors are 4 in. X 1-4 in. All the doors are X-bracedwith 3 in. X i| in. stuff, and covered with i-in. boards. The spaces between the roof-boards andthe plates are left open for ventilation. The building is tied together at the centre by two i^-in.iron rods.

The cost of this building can be placed at about $2500 to $3000, varying according to the local-ity and the depth of the foundations.

Twj thousand-ton Ice-house at Jersey City , N. Lehigh Valley Railroad.- 'The two-thousand-tonice-house of the Lehigh Valley Railroad, at Jersey City , N. J. , shown in Figs. 165 to 168, designed by

Fig. 165.— Front Elevation,

Fig. 166.—Ground-plan at Shaft.

Fig. 167.—Elevation of Hoisting-cage.

Fig. 168.—Plan of Hoisting-cage.

Mr. C. Rosenberg, Master Carpenter, Lehigh Valley Railroad, is a frame structure, 30 ft. 8 in. wide X120 ft. 8 in. long, outside dimensions, and 24 ft. high from ground to eaves. It is divided into fourcompartments, each 30 ft. X 30 ft. There is a loading platform, 6 ft. wide on one side of the housealong a track, the floor of the platform being level with the car-floor. Two hoists on this platformconnect with shafts inside the building, each hoist supplying two of the four compartments in thehouse.

The side walls in this building have an 8-in. space filled with sawdust, and outside of that a3-in. air-space. The studding is formed of 8-in. stuff, ceiled on the inside with i-in. rough boardslaid horizontally, and sheathed on the outside with i-in. rough boards laid diagonally, thereby