Subject ASC0003yv2
The geologist : a popular monthly magazine of geology.
v.4 (1861), Page 116 (1861)
American Museum of Natural History Library
BHL Page 47658825
Keywords
drift donald's hill donald hill ireland soil surface person quarry chalk limestone kilhoyle derry county derry basalt mud lump red grey flint fracture hollow bone horn landscape geography geology chalk layers osseous remains