This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

The fact that this book has reached you is thanks, first and foremost, to the librarians who have carefully preserved it for many years. Google employees digitized it as part of a project whose goal is to make books from all over the world accessible via the Internet.
This book is in the public domain. In general terms, legally, a book enters the public domain when its copyright expires, or if the copyright holder has placed it in the public domain themselves or failed to claim copyright. Such books are a key to the past, to the treasures of our history and culture, and to knowledge that often cannot be found anywhere else.
In this digital copy, we have left unchanged all the handwritten notes that were in the original edition. Let them serve as a reminder of all the hands through which this book has passed—the author, the publisher, the librarian, and previous readers—to finally reach yours.
We are proud of our partnership with libraries, through which we digitize public domain books and make them accessible to everyone. These books belong to all of humanity, and we are merely their custodians. Nevertheless, digitizing books and supporting this project is costly; therefore, to continue providing this resource, we have taken certain measures to prevent the commercial use of these books. One of these is technical restrictions on automated queries.
We also ask you:
Our mission is to organize the world's information and make it universally accessible and useful. Google Book Search helps users find books from all over the world, and helps authors and publishers find new readers. To perform a full-text search of this book, open the page http://books.google.com