paper from below

Many of the broken hydrometer tubes recovered contained paper scales. This scale slid out of its glass tube during the trip to the surface, but it is in incredibly good condition for paper that has lain for 140 years on the bottom of the sea. Graphic courtesy of Monitor Expedition 2002, Monitor Collection, NOAA/OER.

Related Links

Monitor Expedition 2002

Monitor Expedition 2002: Jul 13 Log

NOAA Ocean Explorer Gallery