Alfred Russel Wallace was one of the most influential naturalists of the 19th century, known for his independent discovery of the theory of evolution by natural selection. This collection of letters and reminiscences offers a rare glimpse into the life and work of this remarkable scientist, as well as into the intellectual and cultural milieu of his time. James Marchant, a close friend and colleague of Wallace, compiled and edited the letters, which cover a wide range of topics including scientific inquiry, social justice, and spiritualism. This book is a must-read for anyone interested in the history of science and the evolution of ideas. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.