First published in 1938, A Manual of Radioactivity is a classic reference work that provides a comprehensive overview of the properties of radioactive materials and their practical applications. Written by two pioneering scientists, Fritz Paneth and George Hevesy, the book covers topics such as the isotopes of common elements, the properties of radiations, and the methods used to detect and measure radioactivity. With its clear explanations and helpful diagrams, this book is an invaluable resource for physicists, chemists, and engineers. 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.