A Boke Named Tectonicon. Briefly Shewinge the Exacte Measuring, and Spedye Reckonynge All Manner of Lande, Squares, Tymber ... And in Thende a Lytle Treatise Adioyned, Openinge the Composition and Appliancie of an Instrument Called the Profitable Staffe. With Other Thinges Pleasaunt and Necesarye, Etc