in Oxford Dictionary of National Biography
September 2004; p ublished online September 2004 .
Reference Entry. Subjects: Cartography; World History; Prints and Printmaking; Science and Mathematics; Instruments and Instrumentation Engineering. 568 words.
Ryther, Augustine (d. 1593), map engraver and maker of scientific instruments, is of unknown origin. The Dictionary of National Biography, apparently following the Yorkshire antiquary Ralph...