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.

This is a digital copy of a book that was preserved for generations on library shelves before being digitized by Google as part of a project aimed at making the world’s books available online.
It has survived long enough to no longer be protected by copyright and has entered the public domain. A book in the public domain is a book that was never protected by copyright or whose legal copyright terms have expired. The classification of a book as being in the public domain may vary from country to country. Public domain books are the link to our past, representing a heritage of history, culture, and knowledge that is often difficult to discover.
Comments, notes, and other marginal annotations present in the original volume will appear in this file as a testament to the long journey traveled by the book, from the original publisher to the library, to reach you.
Google is proud to partner with libraries to digitize public domain materials and make them universally available. Public domain books belong to the public, and we are merely their custodians. However, this work is costly; therefore, to continue offering this service, we have taken certain initiatives to prevent illicit use by commercial entities, including the imposition of restrictions on the submission of automated queries The use of software scripts or "bots" to search or download data automatically without human intervention..
Furthermore, we ask that you:
Do not make commercial use of these files We designed Google Book Search for use by individual private users, and we request that you use these files for personal, non-commercial purposes.
Do not send automated queries Do not send automated queries of any kind to Google. If you are conducting research in the field of machine translation, optical character recognition (OCR Technology that converts images of typed, handwritten, or printed text into machine-encoded text.), or other fields where you need to use large amounts of text, we invite you to contact us. We encourage the use of public domain materials for these purposes and may be able to help.
Maintain the watermark The Google "watermark" that appears in each file is essential for informing users about this project and helping them find additional materials through Google Book Search. Do not remove it.
Use it legally Regardless of how you use it, remember that it is your responsibility to ensure you are doing so legally. Do not assume that because a book is in the public domain for users in the United States, it is also in the public domain for users in other countries. The criteria determining whether a book is protected by copyright vary from country to country, and we cannot offer guidance on whether a specific use of the book is permitted. Do not assume that because a book appears in Google Book Search, it means it can be used in any way and in any country in the world. Penalties for copyright violations can be very severe.
Google's mission is to organize the world's information and make it universally accessible and useful. Google Book Search helps readers discover books from all over the world and allows authors and publishers to reach a wider audience. You can perform a web search on the entire text of this book at http://books.google.com