This important book collects some of the most influential writings of one of the greatest scientific minds of the 19th century. From his groundbreaking work on electricity to his groundbreaking research on the nature of light, the author's insights continue to inspire and challenge scientists and intellectuals today. With its lucid prose and profound insights, this book is a must-read for anyone interested in the history of science.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.