Into the unknown:  the story of exploration 

 - Washington, D.C.  The National Geographic Society  1987 
 - 336 p. 
<br/><br/> Includes Index 
<br/><br/> Early Quests -- Pytheas -- To cross the seven seas -- Leif Eriksson and Clan -- Ferdinand Magellan -- The golden Americas -- Hernan Cortes -- By trail and stream -- Meriwether Lewis, William Clark -- West meets East -- Marco Polo -- Alexander David-Neel -- A sea so vast -- Robert O'Hara Burke, William John Willis -- Fatal Africa -- Samuel and Florence Baker -- The last wilderness -- Charles Darwin -- The call of the ice -- Roald Amundsen, Robert Falcon Scott -- Into the deeps -- William Beebe -- Out of the cradle -- Neil Armstrong, Edwin Aldrin, Jr., Michael Collins. 
<br/><br/> This book chronicles that story from the first explorers to push back the edge of the known world. Today's explorers seek to understand the world we have now encompassed. 
<br/><br/> 62803 
<br/><br/><label>ISBN: </label>0870446940 
<br/><br/><label>ISSN: </label>0870446959 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discoveries in geography
<br/><br/><label>Dewey Class. No.: </label>910.9 Int   15