This book investigates the practical application of data and calculations essential for the efficient operation of cyanide plants, particularly in the context of ore processing and metallurgy. Herbert A. Megraw, an engineer with experience in the field, presents a compilation of data and methodologies derived from contemporary industrial practices. The work focuses on providing engineers and metallurgists with the necessary quantitative information to optimize cyanide extraction processes, addressing challenges related to reagent consumption, solution control, and recovery rates.

This work is presented as a technical manual for professionals in the mining and metallurgy industries, offering practical data for cyanide plant operations. Its value lies in its direct application to industrial processes, providing engineers with quantitative tools for optimization. The book's focus on empirical data and established methods suggests it was intended as a reliable reference for practitioners seeking to improve efficiency and recovery in cyanide-based extraction.