CUNINGHAM, WILLIAM. The Cosmographical Glasse. London: John Day, 1559. Title within woodcut border (McKerrow & Ferguson 99), arms of Robert Dudley, Earl of Leicester on verso, portrait of the author on A3v in printed facsimile, folding woodcut view of Norwich, numerous tables (one folding), woodcut diagrams and figures in text (one full-page), several large historiated woodcut initials. Folio, rebound in modern calf, title darkened with chip at upper fore-corner, leaf A3 in facsimile (text on recto, portrait on verso), lower margins dampstained (occasionally touching a catchword), folding view with some soiling and separation at folds. FIRST EDITION OF THE FIRST ORIGINAL ENGLISH WORK ON COSMOGRAPHY (and the only edition to be listed by Pollard & Redgrave). Cuningham's comprehensive work of mathematical practice is particularly notable for its exposition of surveying by triangulation and for a method of determining longitude, which the author demonstrates using examples of astronomical observations made in his native town of Norwich. Houzeau & Lancaster 2603; Johnson Astronomical Thought in Renaissance England; STC 6119; Taylor Tudor and Stuart 34.