High-grade silica rocks of the Scottish highlands and islands.
Contributors: Geological Survey of Great Britain.; Great Britain. Department of Scientific and Industrial Research.
Series: Wartime pamphlet / Geological Survey of Great Britain -- no.7; Wartime pamphlet -- no.7.
Publisher: Geological Survey and Museum
Published: 1940
Place of publication: London
Language: eng
Notes: At head of title: Department of Scientific and Industrial Research. Geological Survey of Great Britain.