{ "item_title" : "The Principles And Practice Of Coal Mining (1906)", "item_author" : [" James Tonge "], "item_description" : "The Principles and Practice of Coal Mining is a comprehensive guide to the coal mining industry, written by James Tonge and originally published in 1906. The book covers every aspect of coal mining, from the geological formation of coal to the methods of extraction and transportation. It provides detailed descriptions of the various types of coal mines, including shaft mines, slope mines, and drift mines. The book also covers the tools and machinery used in coal mining, as well as the safety regulations and procedures that must be followed to ensure the safety of miners. The Principles and Practice of Coal Mining is an essential resource for anyone interested in the history and technology of coal mining, as well as for those working in the industry today.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/43/744/092/1437440924_b.jpg", "price_data" : { "retail_price" : "49.95", "online_price" : "49.95", "our_price" : "49.95", "club_price" : "49.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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