This is a digital copy of a book that was preserved for generations on library shelves before it was carefully scanned by Google as part of a project to make the world's books discoverable online. It has survived long enough for the copyright to expire and the book to enter the public domain. A public domain book is one that was never subject to copyright or whose legal copyright term has expired. Whether a book is in the public domain may vary country to country. Public domain books are our gateways to the past, representing a wealth of history, culture and knowledge that's often difficult to discover. Marks, notations and other marginalia present in the original volume may appear in this file - a reminder of this book's long journey from the publisher to a library and finally to you.
Google Book Search has digitized millions of physical books and made them available online at the Google Books web site. The digitization at the most basic level is based on page images of the physical books. To make this book available as an ePub formated file we have taken those page images and extracted the text using Optical Character Recognition (or OCR for short) technology. The extraction of text from page images is a difficult engineering task. Smudges on the physical books' pages, fancy fonts, old fonts, torn pages, etc. can all lead to errors in the extracted text. Imperfect OCR is only the first challenge in the ultimate goal of moving from collections of page images to extracted-text based books. Our computer algorithms also have to automatically determine the structure of the book (what are the headers and footers, where images are placed, whether text is verse or prose, and so forth). Getting this right allows us to render the book in a way that follows the format of the original book.
Despite our best efforts you may see spelling mistakes, garbage characters, extraneous images, or missing pages in this book. Based on our estimates, these errors should not prevent you from enjoying the content of the book. The technical challenges of automatically constructing a perfect book are daunting, but we continue to make enhancements to our OCR and book structure extraction technologies.
We hope you'll enjoy these books as much as we do.
[This book has been EDITED as explained in the cover page.]
Usage guidelines
Google is proud to partner with libraries to digitize public domain materials and make them widely accessible. Public domain books belong to the public and we are merely their custodians. Nevertheless, this work is expensive, so in order to keep providing this resource, we have taken steps to prevent abuse by commercial parties, including placing technical restrictions on automated querying.
We also ask that you:
About Google Book Search
Google's mission is to organize the world's information and to make it universally accessible and useful. Google Book Search helps readers discover the world's books while helping authors and publishers reach new audiences.