Selenographia (Atlas of the Moon)
From his private observatory in Danzig (now Gdansk) Johannes Hevelius made methodical and precise observations of the moon, and in Selenographia – his first book – he published detailed maps, engraved by himself, of the moon’s surface. Using variously spaced parallel lines he skilfully depicted the silvery textures of the lunar terrain. This finely bound copy of Selenographia was presented to the Bodleian by the author in 1649. In a lengthy inscription he mentions that he has visited to the illustrious Bodleian Library, and expresses his hope that it will, replete as it is with treasures, accept such a humble gift.