The feldspars of the New England and north Appalachian states
By: by A.S. Watts
Series: [United States] Bureau of mines. Bulletin -- 92. Mineral technology 9; Bulletin (United States. Bureau of Mines) -- 92
Publisher: Govt. print. off.
Published: 1916
Place of publication: Washington
Language: eng
Number of pages: 181
Subjects: Feldspar; Mines and mineral resources
Notes: At head of title: ... Department of the interior. Franklin K. Lane, secretary. Bureau of mines. Van. H. Manning, director.

First edition, January, 1916. cf. verso of t.-p.

"List of feldspar grinding mills": p. 172-173.

"Publications on mineral technology": p. 174-175.