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log, by Kelvin and Wilfrid O. White Co. Two Kent clear-view screens, con- sisting of a rapidly rotating dise of glass, were furnished by the Charles Cory Corp., and are installed in the wheel house. MeNab automatic electric whistle controls with secondary mechanical control are provided for both whistle and siren. For hand steering from the wheel house, McLeod hydraulic telemotor eontrol is fitted. An emergency con- trol is fitted in the steering gear room. The radio equipment is of the lat- est type, and includes radio direction finder, radio transmission and re- ceiving sets, and ship-to-shore radio telephone equipment. A _ radio-op- erated clock is installed in the radio operating room. The transmitting set is of 500-watt size. The radio equipment was furnished by the Ra- diomarine Corporation of America. Pneumercators are fitted to all oil and drinking water tanks, and to other water tanks under the refrig- erated cargo space where sounding is difficult. These instruments were furnished by the Pneumercator Co. The ventilating and heating sys- tem supply to each stateroom and to all public rooms fresh warm or cool air, the temperature at all times be- ing controlled by passenger’ or steward. This fresh air is supplied under pressure at rates sufficient to change the air in each space in times varying from three to six minutes, according to the use of the space. Exhaust fans are also connected to the galleys, public lavatories, store- rooms and workshops. Each state- room on A and B decks is provided with an outlet for a portable elec- tric heater. Radiators are not in- stalled in passengers’ staterooms. Officers’ and crew’s quarters are heated by steam radiators; ventila- tion on the boat deck is natural, and below the boat deck in these quar- ters it is forced. The fresh air supplied to the din- ing saloon is put through a special conditioning system which washes and dries the air and brings it to the desired temperature-warm or cool, according to the weather. This air conditioning system is here used for the first time on an American built ship, and the second time on’ any ship. Fire Detection and Prevention Extensive protection against fire is provided. Fire screen doors are fitted for confining a fire to as small a Space as possible, and to prevent it from spreading from one deck to another. They are properly divid- ed into two groups—fire screen or fire proof doors, fitted in. corridors and at entrances to public rooms, and roller fire doors, fitted at stair- ways. Of the first group, fire screen 20 doors, 80 are fitted in passenger spaces. These doors are in many eases designed to harmonize with the surrounding decorations. Several of them are even fitted with glass panels, a special type of glass passed by the fire insurance underwriters being used. Of the roller fire door type, 14 are installed, in general at the landings on each deck at each main stairway. Normally, these doors are rolled up into casings in the tops of the door frames, and thus disap- pear entirely from view. A fire main, carrying water under pressure, is fitted throughout the ship, with hydrants installed in a manner which permits all parts of the ship to be reached with a short length of hose. In all, 92 hydrants are fitted. Connections are made to the fire main for filling the swim- ming tanks. Fire Detecting and Extinguishing Hand fire. extinguishers of the chemical type are provided through- out all parts of the ship. The Rich fire detecting system is installed in cargo’ spaces, _ store- rooms, and other parts of the ship; and the Lux carbon dioxide fire ex- tinguishing system is installed to cover boiler rooms, cargo holds, oil filling stations, paint lockers, lamp room, and storerooms. A Selex au- tomatic electric fire alarm system is also installed, with thermostats in every stateroom and in every other compartment not protected by the Rich system. These thermostats give an alarm in the wheel house and in the engine room and_ engineer’s lounge when the temperature of any space reaches a certain predeter- mined height, and also locate the source ‘of the alarm. These three systems were furnished by Walter Kiddle.& Co. In adidtion, a manually operated fire alarm. system is installed, with twenty alarm boxes. distributed throughout the accommodations and machinery spaces. Each of these registers an alarm by box number in the wheel house. Steam smothering lines are fitted to all fuel oil tanks and to the paint locker in the auxiliary machinery room. Lifeboats are carried on gravity davits of the Welin-MacLachlan type with electric hoisting gear. All boats and davits were supplied by the Welin Davit & Boat Corp. The fol- lowing boats are carried: 2 26- foot motor boats, 10 persons each, 14 30-foot lifeboats, 70 persons each, 4 26-foot lifeboats, 40 persons each, all metallic; and 2 20-foot wooden lifeboats, 18 persons each, The four 26-foot boats are nested inside four 30-foot boats. Two sets of regular Welin quadrant davits, hand operated, are furnished for the 20-foot boats which are intended for use as workboats. The motor life- MARINE REVIEw—February, 1932 boats are provided with cabins and radio outfits. Anchors are supplied as follows: two bower anchors, 17,150 pounas each; one spare bower anchor, 14,- 595 pounds; one stream anchor, 6195 pounds. These anchors were made by the Baldt Anchor Chain & Forge Corp. Anchor eable, of National Malle- able & Steel Castings Co. make, con- sigts of 165 fathoms of 3%-inch stud link chain for each of the two bower anchors. One hundred and twenty fathoms of 5%-inch circum- ference steel wire streamline and 150 fathoms of 7%-inch circumfer- ence steel wire tow line were fur- nished by the Williamsport Wire Rope Co. The windlass is of the horizontal spur geared type, made by the Beth- lehem Shipbuilding Corp. Ltd. Dual electric motor drive with Westing- house motors of 50 horsepower each at 600 revolutions per minute is used. On the forecastle also are two capstan heads, with the machinery on the deck below. Two more ¢cap- stans with motors in one unit on a common bedplate are installed on D deck aft. All these capstans are of American Engineering Co. make, and are driven by Westinghouse water- tight motors of 75 horsepower each at 600 revolutions per minute. The steering gear is of the hy- draulic ram type, having four single- end cylinders arranged fore and aft at a slight angle to conform to the shape of the hull. Two cylinders are aft and two forward of the tiller, to which they are connected by slid- ing blocks. The gear is actuated by electrically driven pumps, with two Westinghouse motors each rated at 75 horsepower at 400 revolutions per minute. The steering gear was made by the American Engineering Co. Emergency hand control is pro- vided. Service For Passengers The main galley on the MARIPOSA was laid out in accordance with the experience of the owner to give.am-. - ple and efficient dining service to all passengers. It is located on E deck, between the main dining saloon and > the cabin dining saloon and serves both. The arrangement of the gal- ley is influenced by the fact that the boiler trunk divides the forward end facilitates a circular flow of waiters’ - traffic. The eight Westinghouse elec- tric range sections are placed to- gether to form one big range, with a hood above, in the central part of the galley. Arranged conveniently are numerous electrical and steam cooking devices and modern galley equipment. In addition to the galley equip- ment noted above, deck pantries are fitted on A, B, C, and D decks to serve beverages, ices, and the like