Washington DC: Government Printing Office, 1927. Original pamphlet. Paperback. 65pp. Thin octavo [23 cm] Stapled white and black printed wraps. Item #23838
From the Introduction- "Exact knowledge of the chemical and metallurgical reactions in the interior of the blast furnace is becoming increasingly important to furnace operators. With a view to providing basic data and thus aiding the iron and steel industry, the Bureau of Mines has attempted to determine the reactions as they take place in the interior of the furnace."