The life and work of Hirn, and the experimental theory of the steam engine : a paper read before the Society on 17th January, 1896, in honour of the anniversary of the birth of James Watt (19th January) /
Unwin, William Cawthorne.
Greenock : Orr, Pollock,
1896.
Hirn, Gustav Adolphe, 1815-1890.
Steam-engines.