XVI.—Notes on Some Minerals of the Mawddach Valley

T. A. Readwin

F.G.S. etc.

Mineralogical Magazine; October 1879 v. 3; no. 14; p. 122-127; DOI: 10.1180/minmag.1879.003.14.06
© 1879, The Mineralogical Society
Mineralogical Society (www.minersoc.org)