The manufacture of earth colours: With thirty-one illustrations

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"The Manufacture of Earth Colours" by Dr. Josef Bersch is a scientific publication written in the early 20th century. This work provides a comprehensive analysis of various natural pigments, specifically those derived from the earth, and details their properties and applications in coloration. It highlights the significance of earth pigments in both the artistic and industrial contexts due to their durability and low cost. The opening of the book lays out the author’s intent and background, explaining that this edition is a revision of an earlier volume by his father, Prof. Dr. Wilhelm Bersch. It emphasizes the industrial importance of earth colours, acknowledging the limitations and challenges in expanding the range of natural pigments due to their finite availability in nature. Furthermore, it begins to address the classification of pigments based on their origin and discusses the methodologies for processing raw materials into usable colours, setting a detailed foundation for the chapters to follow regarding specific classifications and preparation techniques for different earth pigments.