Page:Van Loon--The Story of Mankind.djvu/281

This page has been proofread, but needs to be validated.

THE GREAT DISCOVERIES

227

HOW THE WORLD GREW LARGER

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Van_Loon--The_Story_of_Mankind.djvu/281&oldid=9912923"