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Mineral processes are relatively simple and metallurgical accounting would also be simple if it were not for the nature of the raw materials and the large scale of operations. Essentially the balance between input and output requires only weighing and assaying of the feed, salable products, and waste. but because of complexities to be described in the following pages there are few plants that do not encounter difficulties that cause some sacrifice of precision for economy and practicality. In arriving at a sound compromise, capable |