Surveyors are runnin' about numerous as Bed-bugs, and twice as cheap, with work enough for all certainly in Durham at present, Enclosures all over the County, and North Yorkshire, -- eeh! Fences, Hedges, Ditches ordinary and Ha-Ha Style, all to be laid out . . . "Well, actually the Durham Ha-Ha boom subsided a bit after Lord Lambton fell into his, curs'd it, had it fill'd in with coal-spoil. Pynchon, Thomas, Mason & Dixon, p. 17.