Subject ASC0003iec
The geologist : a popular monthly magazine of geology.
v.6 (1863), Page 168 (1863)
American Museum of Natural History Library
BHL Page 47677643
Keywords
Scotland boulder glacial erratic erratic block erratic basalt groove scratch Kilbarchan geology Clochodrickstone Druid's stone block stone loch winnoch loch winnoch erosion weathering rock