Additions to the Geological Samples Library.

Mode of access: Internet.

Apparatus for testing the permeability of samples of unconsolidated sediment in the field /

Mode of access: Internet.

Oligocene marine diatoms recovered in dredge samples from the Navarin Basin Province, Bering Sea /

Mode of access: Internet.

The chemical analysis of Argonne Premium Coal samples /

Mode of access: Internet.

Collection and analysis of ground-water samples in the Sierra Vista Basin, Arizona, 1996 /

Mode of access: Internet.