A booke named tectonicon [electronic resource] : briefly shewing the exact measuring, and speedie reckening all maner of land, squares, timber, stone, steeples, pillers, globes &c. : further, declaring the perfect making and large vse of the carpenters ruler, conteining a quadrant geometricall, comprehending also the rare vse of the squire : and in the end a little treatise adioyning, opening the composition and appliancie of an instrument called the profitable staffe : with other things pleasant and necessarie, most conducible for surueyers, landmeaters, ioyners, carpenters, and masons / published by Leonard Digges gentleman, in the yeare of our Lord, 1556.