In the spring of 1906, Nobel laureate H.A. Lorentz gave a famous series of lectures at Columbia University. Gathered in one volume and published as The Theory of Electrons in 1909, these talks are still widely read and admired today, more than 100 years later. This collection includes lectures on: . the theory of free electrons . the emission and absorption of heat . the theory of the Zeeman-effect . the propagation of light in a body composed of molecules . the theory of the inverse Zeeman-effect . the optical phenomena in moving bodies Extensive notes, complete with mathematical equations, complement the text, and an extensive index will aid the reader. Dutch physicist HENDRIK ANTOON LORENTZ (1853-1928) shared the Nobel Prize in physics with Pieter Zeeman in 1902. His publications include The Einstein Theory of Relativity: A Concise Statement (1920), Lectures on Theoretical Physics (1927), and Problems of Modern Physics (1927).

Excerpt from The Theory of Electrons and Its Applications to the Phenomena of Light and Radiant Heat: A Course of Lectures Delivered in Columbia University, New York, in March and April 1906 The publication of these lectures, which I delivered in Columbia University in the spring of 1906, has been unduly delayed, chiefly on account of my wish to give some further development to the subject, so as to present it in a connected and fairly complete form; for this reason I have not refrained from making numerous additions. Nevertheless there are several highly interesting questions, more or less belonging to the theory of electrons, which I could but slightly touch upon. I could no more than allude in a note to Voigt's Treatise on magneto-optical phenomena, and neither Planck's views on radiation, nor Einstein's principle of relativity have received an adequate treatment. In one other respect this book will, I fear, be found very deficient. No space could be spared for a discussion of the different ways in which the fundamental principles may be established, so that, for instance, there was no opportunity to mention the important share that has been taken in the development of the theory by Larmor and Wiechert. It is with great pleasure that I express my thanks to Professor A. P. Wills for his kindness in reading part of the proofs, and to the publisher for the care he has bestowed on my work. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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