books.google.com - One of the most influential and important books written about the impact of frontier life on a transplanted civilization. Present volume, reprinted from original 1920 edition, lucidly reflects Jackson's thoughts on the frontier's role in promoting self-reliance, independence, democracy, immigration and...http://books.google.com/books/about/The_Frontier_in_American_History.html?id=oKeNSDcp7fAC&utm_source=gb-gplus-shareThe Frontier in American History