version November 21, 2002 
  (original version September 13, 1994) 
  
  K. Johnson & M. Gordon (John Martin) 
  Thomas Thompson cruise TT008; Spring Time Series 
  Particulate trace metal data 
  Particulate means that fraction collected on a 0.4 um filter 
  
  DMO note: November 21, 2002 
  all longitude values were changed from 140 to -140. 
  This cruise was conducted at 140 West at the equator.