Skip to contentTectonicon: or The art of measuring of land, : squares, timber, stones, pillers, globes, boards and glass: with the carpenters rule, geometrical quadrant, and two useful tables. Also a scale for bringing waters from a spring-head or fountain to a distant place; and rules to know the goodness of waters. Likewise the use of the instrument called the profitable staff, fit for surveyors, joyners, carpenters and masons, &c | Collections | The Huntington