from Mechanics Magazine, April 30, 1831, page 129
“. . . it would be beneficial to have a house transportable on a mere carriage-frame or kind of dray, capable, when placed on the ground, of being raised to a height of from 25 to 30 feet, containing three separate apartments, one above the other, and having an internal communication by one or more short ladders. . . it might be carried to places on which it would be highly dangerous to have a fixed building, and in severe weather it might be preserved under the cover of some shed.” – Henry D––– , Liverpool, March 1831.