Thanks very much.

• Tracts versus tracks - Grace
  • I get confused too sm - Hoku
    • Thanks. I think it's probably tracks too, used more like a verb in this particular case. Your p - Grace
      • Took the picture with my BlackBerry sm - Hoku
    • I agree. It should be "tracks down," - not "tracts down."
  • I would put tract, as in sinus tract (tunnel) formation. IMO. nm - Txczech
    • Thanks very much. - Grace

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