Appendix I. Knowledge of the ancients as to northern and western Europe: 1. Extracts relating to the voyage of Pytheas. 2. C. Julius Caesar. 3. Diodorus Siculus. 4. Strabo. 5. Pomponius Mela. 6. C. Plinius Secundus. 7. Cornelius Tacitus. 8. C. Julius Solinus. 9. Dionysius Periegetes. 10. Rufus Festus Avienus. 11. The Ravenna geographer. 12. Dicuil. 13. Gassendi. Appendix II. A list of the principal Greek and Latin writers to which references have been made.