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The Pamphlet Collection of Sir Robert Stout: Volume 6

Table Showing the Percentage of Tannic (Tannin) and Gallic Acid in the Bark of some Victorian Trees

Table Showing the Percentage of Tannic (Tannin) and Gallic Acid in the Bark of some Victorian Trees.

Systematic Name. Vernacular Name. Locality. Tannic Acid. Gallic Acid.
Eucalyptus Stuartiana Mountain Ash Gippsland 4.6 0.7
Eucalyptus Longifolia Woollybutt Gippsland 8.3 2.8
Eucalyptus Corymbosa Bloodwood Gippsland 2.7 0.8
Eucalyptus Peppermint Tree Gippsland 20.4 0.8
Eucalyptus Grey Gumtree Gippsland 4.9 0.4
Acacia Subporosa Hickory Acacia Gippsland 6.6 1.2
Acacia Penninervis Hardy Acacia Gippsland 17.9 3.8
Angophora Intermedia Spurious Apple Tree Gippsland 2.9 0.9
Eugenia Smithii Myrtle Tree Gippsland 16.9 3.6
Banksia Serrata Heath Honeysuckle Gippsland 10.8 0.7
Pittosporum Undulatum Fragrant Pittosporum. Gippsland 1.2 0.7
Brachychiton Populneum Curryong, or Bottle Tree Gippsland 2.6 0.6

These proportions are the mean of two closely agreeing analyses, and have in some cases been further corroborated by a third analysis.