This is a comprehensive encyclopedia of the industrial arts and sciences, first published in the late 19th century. The book includes detailed information on a wide range of topics, including manufacturing processes, commercial products, and technological innovations. The authors, Edward and Francis Spon, were prominent engineers and industrialists of their time, and the book reflects their deep knowledge and expertise in the field.

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.