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>DISCUSSION. ON THE PERFORMANCE OF THE SCREW STEAM SHIP `SAHEL', FITTED WITH DU TREMBLEY'S COMBINED-VAPOUR ENGINE, AND OF THE SISTER SHIP `OASIS' FITTED WITH STEAM-ENGINES WORKED EXPANSIVELY, AND PROVIDED WITH PARTIAL SURFACE CONDENSATION.
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DISCUSSION. ON THE PERFORMANCE OF THE SCREW STEAM SHIP `SAHEL', FITTED WITH DU TREMBLEY'S COMBINED-VAPOUR ENGINE, AND OF THE SISTER SHIP `OASIS' FITTED WITH STEAM-ENGINES WORKED EXPANSIVELY, AND PROVIDED WITH PARTIAL SURFACE CONDENSATION.