REFERENCES
- DESAGULIERS, J.T. RS Classified Papers XVIII, No. 30: 'Observations and experiments relating to Friction', 5th March 1729-1730.
- BOCHET, M.H. 'Diminution d'intensit du frottement de glissement' Comptes Rendus, Academiedes Sciences, Paris, 1858, P. 802.
- PAPIN, D. (1647–1710), Nouvelles experiences du vuide, avec la description des machines qui servent a it faire, Paris, 1674.
- Phil. Trans., XVI, 21, 22.
- Phil. Trans., XXV, 2415, 2417.
- (a) MANGIN, A. Merveilles de l'industrie, Tours, 1862. (b)FIGUIER, L. Merveilles de it science, Paris, 1867.
- ANDRAUD, M. and DU MOTAY, T. De l'air comprime et dilate comme moteur, ou des forces naturelles recueillies gratuitement et mises en reserve, Paris, 1840.
- SHUTTLEWORTH, J.G. The Hydraulic Railway: being a carefully digested, but plain statement of the advantages to be derived, and impediments removed, in establishing hydraulic propulsion on railways, London, 1842.
- PORTER, J.R. The Helicopter flying machine, London, 1911.
- GIRARD, L.D. Chemin de fer glissant, nouveau systime de locomotion a propulsion hydraulique, Paris, 1864, iii—vi, 6.
- GIRARD, L.D. Le chemin de fer glissant a propulsion hydraulique, Paris. 1867 ( other references are also given by Professor A. Cameron in Chapter 12 of his Basic Lubrication Theory (Longmans).
- Memoires et compte rendu des travaux de la Societe des Ingenieurs avils, Paris, 1890, meetings of 17th January and 7th February 1890.
- The Railway News, 28.3. 1891.
- HAYWARD, L.H. in The History of Air-Cushion Vehicles, Kalerghi-Mcleary Publications, London, 1963.