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About this book

This is a digital copy of a book that has been 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 public domain book is a book that was never protected by copyright or whose legal copyright terms have expired. Whether a book is classified as being in the public domain may vary from country to country. Public domain books are a link to the past; they represent a heritage of history, culture, and knowledge that is often difficult to discover.
Comments, notes, and other marginalia original: "annotazioni a margine" present in the original volume will appear in this file as a testament to the long journey the book has taken—from the original publisher to the library, and finally to you.

Guidelines for Use

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, in order to continue offering this service, we have taken steps to prevent misuse by commercial entities, including the imposition of restrictions on automated querying.
We also ask that you:

• Do not use these files for commercial purposes We designed Google Book Search for use by individual private users, and we ask 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 fields of machine translation, optical character recognition (OCR), 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 you.
• Keep 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. Please do not remove it.
• Use it legally Regardless of how you use it, remember that it is your responsibility to ensure your use is legal. 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 for determining whether a book is protected by copyright vary from country to country, and we cannot offer guidance on whether a specific use of a book is permitted. Do not assume that because a book appears in Google Book Search, it can be used in any way or in any country in the world. The penalties for copyright infringement can be very severe.

About Google Book Search

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 search the full text of this book on the web at http://books.google.com

Google (the technology company), public domain (works no longer under copyright), copyright (legal ownership of creative work), digitization (the process of converting physical text to digital), Google Book Search (the specific service for finding digital books).