18 "TAE- MARINE. REVIEW tion of auxiliary condensing plant is provided, also steam fire and salvage pump, automatic boiler feed pump, together with full outfit of engine room atxiliaries, in accordance with the best modern practice. Independent maneuvering steam _winches are provided at bow and stern for regulating the cut of the dreger, also independent steam-hoist gears for con- trolling the bucket ladder and the hopper doors. The dredger is electrically lighted throughout, and in all respects equipped for constant and efficient work in her destined province. She has been constructed under the direction of Mr. John Macauley, general manager of the Alexandra Docks & Railway Co., assisted by Mr. Robert Anderson, Renfrew, who acted as resident inspector. THE MANXMAN. "By EMILE JUARINI. : A new turbine-driven steamer, called the Manxman, has been recently built at-Barrow-in-Furness by Messrs. Vickers has four decks, one of these--the shade deck--being entirely devoted to a promenade, while the promenade deck has a considerable width on each side for the same purpose. The dining room occupies the full width of the ship, and has seating accommodation for 100 passengers. The saloon is Situated at the forward end of the promenade deck, and occupies, with the smoking room, a deckhouse which extends for over 130 ft. of the length of the ship. On the deck below there are arranged the principal sleeping rooms in the ship. Many of these cabins have been made portable. The heating and ventilating are by the thermo-tank system of the Thermo-tank Ventilating Co., of Glasgow. This sys- tem aims specially at insuring to all the living quarters of the ship a continuous supply of fresh air, which is not only warmed to the requisite degree, but is also humidified, so that none of the bad 'effects of over-drying can be felt. In cold. weather the warmed air is discharged through.a regu- lator into each apartment near-the level of the ceiling; as TURBINE STEAMER MANXMAN, Sons & Maxim, Ltd., for the Midland Railway Co.'s iste ok Man service. This steamer comprises three sets of expan- sion turbines, the center shaft being driven by the high- pressure turbine, and each of the two side shafts by a low- pressure turbine, the astern driving turbines being mounted also on the side shafts. These latter take steam direct from the boiler. The Manxman has a length on the waterline of 330 ft., a breadth molded of 43 ft. and a depth of 29 ft. 6 in. She it cools, it gradually sinks to a lower level, carrying with it any carbonic acid gas to the passageways, where means are provided for allowing it to pass outside. The circular ther- mo-tanks for circulating the warm air are placed on deck. The thermo-tank consists of an electric motor operating a fan which discharges air to the outside of a tube heater. The air then passes through the tubes, and comes in close con- tact with the heater surface, flowing thence to the main distributing trunks. Tests have shown that where the steam-