Hush-Hush - The Story of LNER 10000
Detailed locomotive study of Gresley's 'Hush-Hush' project to build a 4-6-4 4-cylinder compound locomotive. Completed in 1929, the engine was rebuilt in 1936 and finally withdrawn in 1959. A very fine study with photographs and data throughout.
LAPAGE, R. Herbert
On Compound Locomotives
Proceedings of the Institution of Mechanical Engineers, January 1889
1889 ICME article by Lepage, who had been Locomotive Superintendent of the Argentine Government Railways. In 1886 he designed the first compound goods locomotive in Great Britain which was tested by the Caledonian Railway.