A Manual of the Art of Making and Refining Sugar from Beets: Including the Cultivation of the Plant, and the Various Improvements in the Manufacture

A Manual Of The Art Of Making And Refining Sugar From Beets: Including The Cultivation Of The Plant, And The Various Improvements In The Manufacture by L.-J. Blachette. This nineteenth-century manual traces the history and practice of extracting and refining sugar from beets. Beginning with Margraff's early experiments and Achard's large-scale work, the text situates beet sugar within France’s industrial evolution under figures such as Chaptal and Dombasle. It then covers agronomic aspects: beet varieties, soil and climate, rotation, manuring, sowing methods, and harvesting, emphasizing soil depth, moisture, and agricultural practices. The core sections describe the complete production chain: cleaning, rasping, pressing, defecation, evaporation, concentration, and clarification, including the use of bone or blood in scum formation and charcoal decolorization. The volume continues with refining and bleaching methods, discussing numerous historical processes and modern improvements (Howard, Roth, Taylor patents), and ends with appendices on equipment and commercial prospects. It remains a foundational reference for engineers, agriculturists, and sugar-makers.