Introduction Anne Tihon An unpublished astronomical papyrus contemporary with Ptolemy Alexander Jones Ancient rejection and Adoption of Ptolemy's Frame of Reference for Longitudes Stephan Heilen Ptolemy's doctrine of the Terms and its reception Florian Mittenhuber The tradition of texts and maps in Ptolemy's Geography F. Jamil Ragep Islamic reactions to Ptolemy's imprecisions H. Darrel Rutkin The use and abuse of Ptolemy's Tetrabiblos in Renaissance...