Report on the operations of the coal-testing plant of the United States Geological Survey at the Louisiana Purchase Exposition, St. Louis, Mo., 1904.
By: Edward W. Parker, Joseph A. Holmes, Marius R. Campbell, committee in charge.
Contributors: Holmes, J. A. 1859-1915.; Campbell, Marius R. 1858-1940.; Geological Survey (U.S.)
Series: Geological Survey professional paper -- 48; Document / House of Representatives, 59th Congress, 1st session -- 490; House document (United States. Congress. House) -- 59th Congress, 490.
Publisher: Govt. Print. Off.
Published: 1906
Place of publication: Washington
Language: eng
Number of pages: 300
Subjects: Coal -- Testing.; Coal mines and mining.
Other titles: Field work, classification of coals, chemical work.
Notes: Map on folded plate inserted in back.

Subject series: A, Economic geology, 62; E, Chemistry and physics, 47.

Includes bibliographical footnotes.