Mechanical excavation systems (in three parts)
By: by John A. Lombardi and Charles V. Jude.
Contributors: Jude, Charles V.
Series: Information circular ;; 9420; Information circular (United States. Bureau of Mines) ;; 9420.
Publisher: United States Department of the Interior, Bureau of Mines
Published: 1900
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Excavating machinery.; Longwall mining.; Coal-mining machinery.
Notes: Includes bibliographical references.
Table of contents: title: 2. Stope leach and stope autoclave mineral recovery systems.