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 multi-colored logo of the company Google.
This is a digital copy of a book that has been kept on library shelves for generations before it was carefully scanned by Google as part of a project to make the world’s books available online.
The book has survived the copyright and can now be made publicly accessible. A public domain book is a book that was never subject to copyright or for which the term of copyright protection has expired. Whether a book is in the public domain may vary from country to country. Public domain books are our gateway to the past and represent a historical, cultural, and scientific asset that is often difficult to discover.
Signs of wear, notes, and other marginalia present in the original volume are also found in this file—a reminder of the long journey the book has taken from the publisher to a library and finally to you.
Google is proud to partner with libraries to digitize publicly accessible material and make it available to a wide audience. Public domain books belong to the public, and we are merely their custodians. Nevertheless, this work is costly. In order to continue providing this resource, we have taken steps to prevent abuse by commercial parties. These include technical restrictions on automated queries.
We ask that you observe the following guidelines:
Use of the files for non-commercial purposes We designed Google Book Search for end users and would like you to use these files only for personal, non-commercial purposes.
No automated queries Do not send automated queries of any kind to the Google system. If you are conducting research on machine translation, optical character recognition, or other areas where access to text in large quantities is useful, please contact us. We encourage the use of public domain material for these purposes and may be able to assist you.
Retention of Google brand elements The Google "watermark" that you find in every file is important for information about this project and helps users find further material via Google Book Search. Please do not remove the watermark.
Stay within the law Regardless of your use, you must be aware of your responsibility to ensure that your use is legal. Do not assume that a book that we believe is in the public domain for users in the United States is also in the public domain for users in other countries. Whether a book is still subject to copyright varies from country to country. We cannot provide advice on whether a particular use of a particular book is legally permissible. Do not assume that the appearance of a book in Google Book Search means that it can be used in any form and everywhere in the world. Copyright infringement can have serious consequences.
Google's goal is to organize the world's information and make it universally usable and accessible. Google Book Search helps readers discover the books of the world and supports authors and publishers in reaching new target groups. You can search the entire text of the book on the internet at http://books.google.com.