The New Zealand Railways Magazine, Volume 4, Issue 5 (September 1, 1929)
The Voco-Motive
The Voco-Motive.
But let us turn from these musical morbidities to consider the railway engine as a vocalist. Truly the locomotive is a voco-motive. If you doubt the assertion, trusting reader, remove the cotton wool from your receiving set and station yourself in the vicinity of a crossing, or a tunnel, or a shunting yard. Then you will hearken to the sweet childish tootle of the baby shunter as it patters up and down the rails, learning its letters from the alphabetical rolling stock.