E-text prepared by Fritz Ohrenschall, Michael Zeug, Lisa Reigel,
and the Project Gutenberg Online Distributed Proofreading Team
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Transcriber's Notes:
A few typographical errors have been corrected. They have been underlined in the text. Positionyour mouse over the word to see the correction. A complete list ofchanges follows the text.
On page 45, the original has the words "co[=m]ander" and "su[=m]e". [=m]represents the letter m with a macron. It is a shortcut indicating that theword should have two m's in succession.
Ellipses are represented as in the original.
To see an image of the original page, click on the page numberin the right margin.
[i]
[ii]
[iii]TO
CAROLINE M. TURNER
MY WIFE
[iv]
[v]
In republishing these essays in collected form, it has seemed best toissue them as they were originally printed, with the exception of a fewslight corrections of slips in the text and with the omission ofoccasional duplication of language in the different essays. Aconsiderable part of whatever value they may possess arises from thefact that they are commentaries in different periods on the centraltheme of the influence of the frontier in American history. Consequentlythey may have some historical significance as contemporaneous attemptsof a student of American history, at successive transitions in ourdevelopment during the past quarter century to interpret the relationsof the present to the past. Grateful acknowledgment is made to thevarious societies and periodicals which have given permission to reprintthe essays.
Various essays dealing with the connection of diplomatic history and thefrontier and others stressing the significance of the section, orgeographic province, in American history, are not included in thepresent collection. Neither the French nor the Spanish frontier iswithin the scope of the volume.
The future alone can disclose how far these interpretations are correctfor the age of colonization which came gradually to an end with thedisappearance of the frontier and free land. It alone can reveal howmuch of the courageous, creative American spirit, and how large a partof the histor