This seminal work by Joseph Bishop Keller revolutionized the field of electrohydrodynamics when it was first published. In this book, Keller presents a rigorous mathematical analysis of the equilibrium of charged gases in containers, providing a foundation for future research in the field. With clear explanations and expert-level writing, this book is an essential resource for anyone interested in the physics of electrohydrodynamics. 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.