'...curious arched Rock, having a River running under it, in Tolago Bay.' Finish:Single Engraving of Tycho Brahe's triangular

Engraving of Tycho Brahe's triangular astronomical sextant for the determination of distances ('Sextans astronomicus trigonicus pro distantiis rimandis')

interspersed with doodles

North polar distance and sweep numbers

and Leon Gambetta

'The Violinist'

'...curious arched Rock, having a River running under it, in Tolago Bay.' Finish:Single Engraving of Tycho Brahe's triangularTolaga (formerly Tolago) Bay (Maori: Uawa) is a bay and small town on the east coast of New Zealand's North Island. Illustration from A journal of a voyage to the South Seas, in His Majesty's ship, The Endeavour, by Sydney Parkinson (London, 1773), which was published posthumously. Original: engraving. 1773