Subject ASC0003tbd
The geological magazine, or, Monthly journal of geology.
Decade 3:v. 4 (1887), Page 300 (1864)
Smithsonian Libraries
BHL Page 30751707
Keywords
rock spherulites' Tolcsva perlitic lava lava Wuenheim skeletonspherulites microscope drawing Tolcsva spherulites cross section Tolesva flow lines skeleton spherulites possible fossil(s)