Originally published in 1876 in English, this volume is an exact black and white scan of the original text. This digital version was made possible through the generosity of Yale University and a project funded by the Microsoft Corporation. It is part of a growing collection of digital texts and images created and curated by the Yale University Library. Now available and preserved for the learning, research, and reading enjoyment of future generations, these collections represent a rich cultural heritage of scholarly material on a variety of topics across disciplines.