This book details the practical application of the cyanide process in metallurgy. Francis Lawrence Bosqui, likely an engineer or metallurgist, presents a technical guide focused on the extraction of precious metals, primarily gold and silver, using cyanide. The text aims to provide working knowledge for those involved in the mining and refining industries, covering the chemical principles and operational procedures necessary for effective implementation.

suggests this book serves as a foundational technical manual for professionals in the field of extractive metallurgy. Its focus on practical application and detailed procedures indicates it is intended for engineers, chemists, and mine operators. The subject matter points to a dense, specialist text that would be valued for its direct utility in industrial settings.