Investigations of the preparation and use of lignite, 1918-1925,

Running title: Lignite investigations, 1918 to 1925.

Bituminous coal and lignite; changing patterns in distribution and markets.

Mode of access: Internet.

Recent high grade uraniferous lignite discoveries in Harding County, South Dakota /

"January 1955."

Research laboratory in North Dakota lignite-consuming region. Hearing, Eightieth Congress, second session, on H.R. 2453. February 19, 1948.

Mode of access: Internet.

Destillation von braunkohle aus der grube Ludwigshoffnung bei Wölfersheim im wasserdampfstrom bei verschiedenen temperaturen ...

Lebenslauf.

Central Siberian brown coal as a potential source of power for European Russia /

"SW 80-10006."

Deutschlands Braunkohle, ihre Gewinnung, Verwertung und wirtschaftliche Bedeutung.

Mode of access: Internet.

Special reports on the mineral resources of Great Britain.

v.31 Ball clays -- v.32 Granites of Scotland -- v.33 Synopsis of the mineral resources of Scotland -- v.34 Rock wool -- v. 35 Limestones of Scotland -- v.36 Cambro-Ordovician limestones and dolomites of the Ord and Torran areas, SKye and the Kishorn area, Ross-Shire -- v.37 Limestones of Scotland : chemical analyses and petrography