A booke named Tectonicon : brieflie shewing the exact measuring, and speedie reckoning all manner 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.