In the early 1980s a witness observed the landing of an unknown circular craft. It landed next to a tree which resulted in broken limbs. The witness removed bark from the tree in the early 1990s. It had been sitting in his garage ever since. The object is to identify black and white substances on the bark.


  • The white substance on the bark is identified as calcium oxalate. This substance is often accumulated as a metabolic end-product in plant decay and in fungi.1 So, it is not unusual for this to be present.
  • The black substance is a common fungal material. There is no evidence for carbon, i.e. charred material.

The Analysis


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