The International Exhibition: marine engines of the Mediterranean Forging Company - from a photograph by the London Stereoscopic Company, 1862. ...engines constructed by the Soci?t? Nouvelle des Forges et Chantiers de la Mediterran?e at Marseilles...This mechanical example in an eminent degree indicates how a compression can be made into the smallest possible space of a pair of engines of [400-horse power]...Within a recent period lessening the weight of and the space occupied by marine engines has made very rapid progress...The part behind the temporary ladder...represents the condensing-chamber, in which, for the purpose of saving space and obtaining concentrated strength, the air-pumps and slides for maintaining the parallelism of the crossheads are placed...The two working cylinders, with their slide-boxes and eccentric-rods, occupy the right-hand side of the Engraving. The cylinders, by a peculiar arrangement of the piston-rods, admit of the smallest space being used for giving motion to the screw-shaft. From "Illustrated London News", 1862.