The Science of Brickmaking

"The Science of Brickmaking" by George Frederick Harris is an instructional treatise on the technical aspects of brick production, written in the late 19th century. The book covers various essential topics concerning brick materials, including the geological origins of brick-earths, the chemical properties of clays, and the processes used in brick manufacturing. It aims to provide practical knowledge to brickmakers, enhancing their understanding of the materials they work with and how to optimize their use. The opening of the work introduces readers to the foundational concepts of brick-making, focusing particularly on the types of brick-earths that can be found in English brickyards. Harris begins by describing the layers of clays and loams in areas like Crayford and Ilford, discussing their stratification and the fossil remains often discovered alongside these earths. The author emphasizes the significance of understanding the geological origin of these materials, explaining how different types of deposits—fluviatile, lacustrine, and marine—affect the suitability of earth for brick production. The initial chapter not only sets the groundwork for the technical content to follow but also highlights the historical context of brick-making by referencing ancient animal remains and tools uncovered in the brick-earths, illustrating the link between natural history and contemporary industry.