XII.—Further Improvements in Studying the Optical Characters of Minerals

H. C. Sorby

President G.S. etc.

Mineralogical Magazine; September 1878 v. 2; no. 10; p. 103-105; DOI: 10.1180/minmag.1878.002.10.02
© 1878, The Mineralogical Society
Mineralogical Society (www.minersoc.org)