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Do They Sleep Soundly? When your passengers get up in the morning are they refreshed from a good night’s sleep? If they have been sleeping on the boats equipped with Sturtevant ventilating fan, the chances are that the fresh cool sea air has filled them with new zest and vigor. Sturtevant Ventilating equipment has been the standard by which all other systems have been measured for over fifty years. They are both quiet and efficient. We put into them the ex- perience gained from sixty-six years of building air handling equipment. A request will bring you complete in- formation on this very important sub- ject of marine ventilation. AES B. F. STURTEVANT COMPANY, HYDE PARK, BOSTON, MASS. Sales Engineering Offices in Principal Cities evan! Marine Equipmen (REG:U-S-PAT- OFF:) Heating and Ventilating Mechanical Draft Equipment— Ventilating Sets—Heaters— Gasoline and Equipment— Turbines—Motors—Blowers— Generating Sets—Exhausters Steam Engines If You Want The Best Specify Hyde S. S. “A. F. HARVEY” owned by Pittsburgh Steamship Co. and built by Great Lakes Engineering Works. S. S. “B. F. AFFLECK” owned by Pittsburgh Steamship Co. and built by Toledo Ship- building Co, : S. S. “S. T. Crapo” owned by Huron Trans- portation Co. and built by Great Lakes En- gineering Works. These three fine new boats are all equipped with Quadrant Type Steering Gear Spur Gear Windlass Mooring Winches Hatch Winches HYDE Quadrant Type Steering Gear yde Windlass Company Bath, Maine MARINE REVIEW—May, 1931