TABLE 3.2 (Carron, 1968)

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                   ANGLE OF OBSERVATION TO TOP OF TREE

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Angle              60                45               30

of     _________________________________________________________________

Lean        Towards Away      Towards Away     Towards Away

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degrees              (Error  as % of true height)

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 5          +15   -15         + 8   - 9         + 5   - 5

10          +29   -32         +16   -19         + 8   -12

15          +41   -48         +22   -29         +11   -19

20          +53   -65         +28   -40         +13   -26

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