The New Zealand Railways Magazine, Volume 4, Issue 10 (February 1, 1930)
“Kiln-drying,” continued the Minister, “will enable a direct financial economy to be effected. Substantial though this saving is, the better service, the longer life, and lower maintenance cost that may be expected from vehicles constructed with kiln-dried timber is far more important. Compared with air-dried timber, economy will be effected in the milling process in the workshops, because with the kiln-dried article there will be less warping and shrinkage. A more regular product will be treated in the workshops, and loss due to handling and milling timber that afterwards proves serviceable will be cut out.