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Digger (Invercargill RSA), Issue 41, 24 December 1920, Page 15

There exists in the Cambridge School of Forestry a wonderful specimen of the oblong tree, which has assisted the discovery of a secret of growth. The trunl^ in question is about 30in by 2in. Its curious shape is due to no more than a little bruise or two which persuaded it to grow in one direction and not at all in ahy other. Other discoveries and experiments prove that an artistic bruise — it may be no more violent than strong pressure with the finger-tips— can make a tree expand in a desired direction.