george dub frederick moses (2 risultati)

Paperback. Condizione: New. Print on Demand. This book delves into the burgeoning graphite industry of the early 20th century, specifically focusing on the period surrounding World War I. The author, a field researcher for the Bureau of Mines, provides a detailed account of the mining and milling methods employed in the key graphite-producing regions of the United States, including Alabama, New York, Pennsylvania, and Texas. The book reveals the challenges faced by the industry in establishing a robust domestic supply chain for a material vital to the manufacture of crucibles, a critical component in steel and munitions production. The authorââ â¢s firsthand observations and analysis of various milling techniques, including water skin flotation, pneumatic processes, and oil-froth flotation, offer a fascinating glimpse into the technological innovations and challenges of the time. The book's meticulous analysis of the industryââ â¢s evolution, highlighting the impact of wartime demand and the subsequent shift towards reliance on domestic resources, underscores the importance of strategic mineral resources in national security and industrial development. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Hardcover. Condizione: Good. 1st Edition. Deaccessioned from the Harvard College Library (which received the bulletins from the U.S. government), which overbound the six bulletins in light brown buckram with black morocco leather gilt-stamped spine labels, which are chipped and worn; binding has soil and wear; corners bumped; tight, text clean. Includes: Bulletin 109. Operating Details of Gas Producers (74 p.) -- 110. Concentration Experiments with the Siliceous Red Hematite of the Birmingham district, Alabama (91 p., with in-text illustrations and a foldout map) -- 111. Molybdenum: Its Ores and their concentration with a discussion of markets, prices and uses (vi, 3-132, with 18 p. of plates) -- 112. Mining and Preparing Domestic Graphite for Crucible Use (80 p., with 5 p. of plates) -- 113. Abstracts of Current Decisions on Mines & Mining reported May-Sept. 1915 (xiv, 124 p.) -- 114. Manufacture of Gasoline & Benzene-Toluene from petroleum & other hydrocarbons (xvii, 268 p., with in-text illustrations and 9 p. of plates). Thick, heavy volume. Size: 9 7/16 x 6 inches. [br 39].