This eBook was produced by Sue Asscher and Robert Prince. LOUIS AGASSIZ HIS LIFE AND CORRESPONDENCE. EDITED BY ELIZABETH CARY AGASSIZ. PREFACE. I am aware that this book has neither the fullness of personal narrative, nor the closeness of scientific analysis, which its too comprehensive title might lead the reader to expect. A word of explanation is therefore needed. I thought little at first of the general public, when I began to weave together in narrative form the facts, letters, and journals contained in this volume. My chief object was to prevent the dispersion and final loss of scattered papers which had an unquestionable family value. But, as my work grew upon my hands, I began to feel that the story of an intellectual life, which was marked by such rare coherence and unity of aim, might have a wider interest and usefulness; might, perhaps, serve as a stimulus and an encouragement to others. For this reason, and also because I am inclined to believe that the European portion of the life of Louis Agassiz is little known in his adopted country, while its American period must be unfamiliar to many in his native land, I have determined to publish the material here collected. The book labors under the disadvantage of being in great part a translation. The correspondence for the first part was almost wholly in French and German, so that the choice lay between a patch-work of several languages or the unity of one, burdened as it must be with the change of version. I have accepted what seemed to me the least of these difficulties. Besides the assistance of my immediate family, including the revision of the text by my son Alexander Agassiz, I have been indebted to my friends Dr. and Mrs. Hagen and to the late Professor Guyot for advice on special points. As will be seen from the list of illustrations, I have also to thank Mrs. John W. Elliot for her valuable aid in that part of the work. On the other side of the water I have had most faithful and efficient collaborators. Mr. Auguste Agassiz, who survived his brother Louis several years, and took the greatest interest in preserving whatever concerned his scientific career, confided to my hands many papers and documents belonging to his brother's earlier life. After his death, his cousin and brother-in-law, Mr. Auguste Mayor, of Neuchatel, continued the same affectionate service. Without their aid I could not have completed the narrative as it now stands.