Subject ASC0003sbw
The geological magazine, or, Monthly journal of geology.
[Decade 1]:v .5 (1868), (1868)
California Academy of Sciences
BHL Page 36244267
Keywords
concrete agate minerology concretions brecciated banded AGATE JASPER agate concrete section map J. Ruskin J.C. Armitage G. Allen 1868 Concrete Agate section Concrete Agate Map