--Microscopic investigation of Friedensville. Pennsylvania, zinc ore
By: by D.M. Fraser ...
Series: [Lehigh university] The Institute of research. Circular -- no. 114 Science and technology, -- no. 95; Circular (Lehigh University. Institute of Research) -- no. 114 Science and technology no. 95.
Publisher: Lehigh University
Published: 1935
Place of publication: Bethlehem, Pa
Language: eng
Number of pages: 461
Subjects: Geology; Zinc ores
Notes: At head of title: Lehigh university publication. vol. IX, no. 11, November 1935.

Reprinted from American mineralogist, vol. 20, no. 6, June 1935.

Cover title.