This book is an important resource for anyone interested in the science of building materials. Written by Bryan Higgins, the book outlines the experiments and observations made with the view of improving the art of composing and applying calcareous cements and of preparing quick-lime. The book includes a theory of these arts and specification of the author's cheap and durable cement for building in crustation or.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.