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14 a | MARINE REVIEW. vent too rapid combustion. On the top is a reservoir where the sulphur dioxide is collected. The smoke from the fire boxes is taken by a pipe near the bottom to a smoke stack leading up through the main deck forward. Pipes from the gas reservoirs connect to a high speed Sturtevant No. 5» Monogram; exhauster, belted to a vertical engine, having 5 inches diameter of cylinder and 6 inches stroke, and fitted with a governor. This exhauster delivers. the sulphur gas through-a 12-inch galvanized iron pipe leading through the main deck to branch pipes extending fore and aft on both.sides of the upper deck. On each of these branch pipes are three connections for special 6-inch sulphur hose, by means of which the sulphur: gas ean. be taken into any compartment of a vessel along- side to be fumigated. Five 20-foot sections of the 6-inch hose are ‘pro- vided, these being stowed in a hose locker on the upper deck. The sul- phur furnaces and sulphur piping below the main deck are well covered with magnesia covering and the piping on deck is kept well clear of wood work. The sulphur bins forward of the furnaces hold together 40 barrels of, sulphur. An 1,800-gallon steel tank for the storing of bichloride of mercury solution is located in the hold amidships on the starboard side. Above this in the deck house is a forty-gallon mixing tank with connections. for steam and water as well as a connection to the large tank below. The proper quantity of the chemical is mixed in the small tank and allowed to flow into the large tank, into which has already been pumped a quan- tity of water sufficient to make the required solution. Near the large tank in the hold is a special Worthington horizontal duplex pump, hav- ing steam and water cylinders of 4%4 and 234 inches diameter respectively and a stroke of 4 inches, its water cylinder valve guard and connections being made of iron and the valves of rubber, it having been found that the bichloride solution acts less quickly on these materials than brass. This pump has suction connections to the sea, the bilge and chloride tank, and delivers to the same tank, to the bichloride pipe system or over- board. Its principal purpose is totake the solution from the tank and force it through the bichloride pipes to hose plugs located on the four corners of the deck house and to the two hose plugs in the hold. By means of the 2-inch hose and spray nozzles the solution can be sprayed as a disinfectant in any part of the vessel or in‘any part of a vessel along- side being disinfected. A bichloride vat is located in the infected com- partment into which articles may be dipped for disinfection. There are ten 10-inch showers and four porcelain lincd iron bath tubs (4 feet 2 inches by 24 inches inside) located in the ten bath rooms in the deck house. These are supplied with water through No. 7 ‘“‘“Geg- enstron” water heaters, the latter being supplied with thermometers and steam and water regulating valves. The heaters are located outside the bathrooms and the temperature of the water is regulated by an attendant. The water supply is provided by connections to a pressure tank (diameter 20 inches and height 5 feet 6 inches) located on the after hold platform. A Worthington horizontal duplex pump (size 3 by 2 by 3 inches) pro- vided with an automatic regulating valve supplies this pressure tank with fresh or salt water as may be required. The pump is so arranged as to maintain a constant pressure in the tank automatically. By means of a system of galvanized iron pipes this tank also supplies the nine wash basins in the staterooms and also the galley with fresh water. The bath rooms and tubs are all provided with drains leading over- board, there being a 38-inch drain on each side for this purpose. The wash basins in staterooms and galley sink are also provided with over- board drains. The four water closet flushing tanks, each holding thirty gallons, are supplied with salt water from the fire system and can be filled by either the deck or steam fire pump. The water closet discharge pipes are of 44-inch lead and discharge overboard just above the water ine. Zeal The vessel is to be provided with four Kinyoun-Francis autoclaves. These are portable formaldehyde gas generators and can be taken into the cabins or rooms of a vessel alongside for disinfecting purposes, the rooms being tightly closed to prevent the escape of the gas. BOILERS AND ENGINES. | _, There are two single-ended Scotch boilers located in the hold out- board of the after hatch. The shell of each boiler is made up of two steel plates with longitudinal lap joints double riveted. Each has one cylindrical furnace stiffened by heavy rings and socket rivets. The com- bustion chambers and the heads are single riveted. The combustion chambers are stayed to shell and back heads by socket rivets. The usual man and hand holes, dry pipe, internal feed pipes, and blow pipes are provided. Each boiler is provided with 80 pounds of rolled zinc sus- pended from the longitudinal stay rods in iron baskets and making metal- lic contact with the stays. The tubes are of charcoal iron. A 3-inch Lynde spring safety valve, the usual gauge and gauge cocks and a salin- ometer pot is attached to each boiler. The uptakes are provided with two dampers for cutting out either boiler. The smoke pipe is 32 inches in diameter and extends 30 feet above the grates. It is provided with a casing 40% inches in diameter where it passes through the house. A steam jet is connected at the base of the smoke pipe and an exhaust nozzle is also provided, so that in case the engine is used non-condensing the exhaust can be made to assist the draft. The boilers are covered with magnesia covering. Other principal features of the boilers are: Working pressure, 110 pounds; length, outside, 10 feet 3 inches; diam- eter, outside, 6 feet 10 inches; heating surface, both boilers, 1189.18 squate feet; grate surface, both’ boilers, 42.25 squaréifeet.. The feed pump is located on the starboard side of the engine room and: is piped to deliver to both boilers through the 1!4-inch feed check valves. “It isa Worthing- ton horizontal duplex pump having 6-inch steam cylinders;o4-inch water cylinders and 6-inch stroke. Its suction is connected to the fresh water tanks, the feed tank, the sea and the bilge, and it can deliver to cither boiler or overboard. Two No. 6 Korting injectors are provided. Either injector can be delivered to either boiler. The suction of one is con- nected to the feed tank and fresh water tanks, that of the other to the sea _ and fresh water tanks. The main engine is of the vertical inverted, direct acting, condensing type with independent pumps. It is of 17 inches cylinder diameter and [February 15, noe 20 inches stroke, designed to develop 200 indicated horse power at about 130 revolutions. It is provided with a single-ported flat slide valve, “Myer” cut off gear and all the usual attachments, including relief valves, sight feed oiling gear and revolution counter. The main steam pipe is provided with a large steam separator draining to the feed tank. The engine cylinder is supported by two cast-iron columns, the guides being bolted to the columns and to the cross-head, being of the “T” type with double cross head pins. bearing bolts directly to it. The thrust bearing is of the horse shoe type, there being three collars forged on the thrust shaft. The main exhaust pipe is covered with branches, gate valves and a transfer valve, so ar- ranged that the exhaust can be led to. the condenser, or, if it is desired to use the engine non-condensing, it can exhaust to the atmosphere through the escape pipe or through a nozzle at the base of the stack. The shafting is of solid forged steel, with couplings and thrust collars forged on. The crank shaft is built up and its extension forms the thrust shaft. A spring bearing is provided for the intermediate shaft. The pro- peller shaft has composition sleeves shrunk on in the two stern tube bear- ings, the intervening part being provided with a watertight covering. The stern tube is lined with lead and the stern bearing is composed of a brass sleeve with lignum vitae staves. This bearing is fitted in a heavy casting bolted to the stern post. The engine is located as far aft as pos- sible and takes up very little hold space. The propeller is of cast iron of the Trout pattern. It is a true screw, four blades, and of 6 feet diameter and 7 feet 4 inches pitch. There is a combined condenser, air and circulating pump of the Wheeler admiralty type located athwartship, aft of the engine. The ex- haust of the main engine is led to the condenser and it also connects to the auxiliary exhaust pipe so that the auxiliary machinery of the vessel, such as dynamo engine, ventilating-blower engine, etc., can exhaust either to the condenser or through the escape pipe. The condenser and its pumps are of the usual construction for marine work, the condenser tubes being of composition, tinned, and the pumps being composition lined. The length of condenser over all is 7 feet 11 inches, and the diameter out- side of flanges 29 inches; cooling surface, 465 square feet. The circulat- ing pump suction is connected to a 5-inch composition sea valve and also to a 5-inch bilge injection valve. A suction air pump is also provided. The feed tank is of steel 4 feet 6 inches long, 18 inches: wide and 30 inches high. It is divided into three watertight compartments by’ ver- tical plates. The feed water is delivered by the air pump into the end compartment at the top, passes down through the filtering material— excelsior—is taken from the bottom by a pipe leading to the top of the next division and there the process is repeated, thus freeing the feed water of oil received from the engine and auxiliary machinery. The feed tank is provided with overflow and drain pipes, watertight covers, water gauge glass, rolled zinc, etc., and is connected to the feed pump and in- jector suction pipe. The overflow pipe is so arranged that any water passing down it can readily be seen. There are seven large steel fresh water tanks not including the bichloride of mercury tanks and the various smaller tanks. These seven tanks hold in all 10,000. gallons of fresh water. Each is provided with manholes, baffle plates, water gauge glasses, and the usual vents and pipe connections, the suction piping being 3 inches in diameter. “AUXILIARY MACHINERY. Included in the auxiliaries is a Worthington horizontal duplex fire pump. A Sturtevant electric light plant is of sufficient capacity to care for one hundred 16-candle-power 110-volt lights. A storage battery, con- structed by the Electric Storage Battery Co. of Philadelphia, consists of sixty cells and has capacity sufficient to carry fifty 16-candle-power 110- volt lights for ten hours after being charged. A Sturtevant blower with high speed engine provides ventilation. The fan is 75 inches in diameter and its width is 26 inches. The ventilating plant is designed to entirely renew the air in all parts of the hold every five minutes, the designed capacity of the blower being 12,000 cubic feet of air per minute when it is making about 260 revolutions per minute. A combined steam windlass and hoisting winch is of American Ship Windlass manufacture. There are two Baldt stockless anchors, one weighing 1,236 pounds and the other 815 pounds. A Gould double-brake hand deck pump of the “Challenge” pattern and No. 5 Hayden & Derby steam bilge ejector are also included among the auxiliaries. ne TO COMMISSION THE KEARSARGE. Washington, D. C., Feb. 14——The committee appointed by Governor Rollins of New Hampshire for procuring some suitable memorial to’ be presented to the battleship Kearsarge has formed a program of elaborate proportions. The committee has in contemplation not only the presen- tation of a memorial to the Kearsarge but a like memorial to the Ala- bama, the companion battleship of the Kearsarge, and in this way to efface whatever ill-feeling exists between the two states as the result of the fight at sea between the Kearsarge and Alabama in 1864. The memorials to be given the two battleships will be a bronze figure of the Indian Chief Kearsarge and will be designed to ‘become a permanent fixture of each warship. On the occasion:of the presentation it is intended to have President McKinley and members of his cabinet, former secretary of the navy Herbert, and many distinguished Americans in attendance. Although it is reported from the works of the Newport News com- pany that.1t will probably; be impossible to have the Kearsarge ready to go into commission. on. the 20th inst., that date has been fixed by the navy department. Capt. ‘William M. Folger will assume command of the vessel at the Norfolk navy yard.. Other officers ordered fot duty on the vessel are: Lieutenant Commander G. A. Merriam, executive: Lieu- tenant Commander N. R. Usher, navigating officer; Lieutenant J. M. Poyer, Lieutenant R. T. Tisdale, now at the navy yard, Washington; Lieutenant 'H. W. Harrison, now in the naval intelligence officé; Lieu- tenant Emil Theiss, Surgeon ‘H. E. Ames, Lieutenant C. W. Jungen, now at the branch hydrographic office, New York; Acting Gunners C. S. Vanderbeck and J. H. Lohwar; Carpenter T. W. Richards, Warrant Machinists Otto Johnson and ‘Martin Casey. tea “ The bed plate is well stiffened and the thrust ~ eo