This file series is a test of Sayles and Mike Head oxygen electrodes done
in the cold room at 2 Deg.C .  Channels 1-8 are Sayles electrodes.  
Channels 10-12 are Mike Head electrodes.  Channel 13 is a resistor dummy load
to provide a control channel.  The file starts July 18, 1995.  The first
three entries on each line are time.