The path runs straight as a plumb-line, worn smooth by feet and baked brick-hard by July, between the green rows of laid-by cotton, to the cottonhouse in the center of the field, where it turns and circles the cottonhouse at four soft right angles and goes on across the field again, worn so by feet in fading precision.
There are no more uses of "plumb line" in the book.
Show samples from other sources
used a plumb line to lay the tile
He turned back and pushed open the door of my room, which had swung shut in the wake of my hasty exit, owing to the fact that the builder had apparently constructed the inn without benefit of a plumb line.