| 21. | The remainder of the mine is almost entirely filled with frass.
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| 22. | The frass is concentrated in the distal corner of the mine.
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| 23. | The frass is deposited in the opposite corner of the mine.
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| 24. | The frass is deposited in the distal corner of the mine.
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| 25. | The frass is deposited in a continuous, vague central line.
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| 26. | The frass is concentrated in the lowest part of the mine.
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| 27. | The frass is deposited on the bottom of this enclosed space.
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| 28. | The frass is deposited in the oldest part of the fold.
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| 29. | The black frass is deposited in the centre of the mine.
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| 30. | It is greyish-white, including dark grains of frass.
|
