This book is a catalog of the books in the library of the Franklin Institute, a scientific society based in Philadelphia. Compiled in the mid-19th century, the catalog provides a valuable snapshot of the state of scientific knowledge at the time, as well as the interests and concerns of the scientific community. It includes entries for thousands of books on a wide range of topics, including mathematics, physics, chemistry, engineering, and natural history. A must-read for anyone interested in the history of science or library 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.