Illustration: FIG. 4.--THE BUILDING READY TO BE MOVED. (FRONT VIEW.)

FIGS. 1 TO 4.--BUILDING OCCUPIED BY THE OFFICES OF THE NEW YORK,

LACKAWANNA & WESTERN RAILROAD.

Illustration: FIG. 5.--THE WALL, A B, SUPPORTED BY SCREWS.

Illustration: FIG. 6.--THE WALL, C D, READY TO BE MOVED.

Illustration: FIG. 7.--METHOD OF MOVING THE JACK SCREWS.

Illustration: FIG. 8.--JACK-SCREW.

Illustration: FIG. 11.--HOLLINGWORTH'S DOUBLE-THREADED SCREW FOR

QUICKLY MOVING BUILDINGS.