Leonard Digges

c.1515 – ca. 1559

A well-known English mathematician and surveyor, credited with the invention of the theodolite, and a great populariser of science through his writings in English on surveying, cartography, and military engineering (Wikipedia).

• A geometrical practise named pantometria
• A booke named Tectonicon, brieflie shewing the exact measuring, and speedie reckoning all manner of land, squares, timber, stone, steeples, pillers, globes, etc. ..
• A Prognostication euerlasting of right good effect
• A prognostication everlastinge
• A boke named tectonicon
• A boke named tectonicon
• A booke named Tectonicon
• A booke named tectonicon
• A booke named Tectonicon; briefly shewing the exact measuring
• A geometrical practical treatise named pantometria..
• A geometrical practical treatize named Pantometria
• A Geometrical practise