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MARINE REVIEW. 19 Pacific Mail Liners on the Stocks at the Newport News Ship Building & Dry Dock Co.’s Works, Newport News Va. framing to extend from top of bulkhead to 1 ft. 6 in. off margin plate. Boundary angles over tank top to be 4x4 in. by 12.8 Ibs. and carried over ‘tank edge and tulled against main and double frames. Keel plate—Outer keel plate butt to be double, stiffened; outside straps to be 32 lbs. and inside straps to be 28 lbs. Inside straps fitted from ‘toe to vertical keel angle over lap of garboard. Outer strap fitted from lap of garboard, port side, to lap of garboard, starboard side, in one piece. Inside keel plate butt to have single straps of 36 lbs. and fitted from toe of vertical keel angle over lap of garboard strake. All the above to be treble riveted. Bath Iron Works, Bath, Me. During the past year the Bath Iron Works, Bath, ‘Me., has launched and has had under construction several merchant vessels, including trans- fers Nos. 18 and 14, for the New York, New Haven & Hartford rail- road, launched Feb. 10, 1900. Dimensions of these tug boats are as follows: Length over all, 134 ft. 6 in.; molded length on water line, 116 ft. 6 in.; molded breadth of beam, 25 ft. 9 in.; depth, molded, 16 ft. 3 in.; gross ton- wage, 322. They are supplied with two three-furnace single-ended Scotch boilers and compound engines of 22 and 48 in. cylinder diameters by 86 in. stroke. These boats, as will be noted, are supplied with enormous boiler Launch of Monitor Nevada. Building at Bath Iron Works, Bath, Me. power, thus enabling them to run with screenings or other low grade fuel, or they may be steamed with one boiler while the other is being cleaned. They are supplied with forced draft for the boilers, and a complete electric light plant is fitted, including search light. : The Bath company is also building a sea-going tug boat for the Staples Coal Co. of the following dimensions: Length over all, 166 ft.; breadth of beam, molded, 29 ft. 4 in.; depth, molded, 18 ft. 9 in. This ves- sel has a bunker capacity of 350 tons. A Williamson steam steering gear is fitted and also a complete electric plant, including search light. The vessel has two single-ended Scotch boilers, each having three furnaces. As will be seen by the size of the coal bunkers and the boilers, this vessel has great steaming radius and power. The engine is triple expansion, with cylinders of 17, 25 and 43 in. diameter and 30 in. stroke, with a work- ing pressure of 185 lbs. to the square inch. This vessel is to be named the uba. Of the vessels under construction for the United States government the torpedo boats Bagley and Barney and the United States monitor Ne. vada have been launched. The torpedo boat Biddle is on the stocks with machinery installed, complete, ready to steam as soon as launched, and the cruiser Cleveland is also in an advanced stage on the stocks. The torpedo boats Bagley, Barney and Biddle are identical and of the following dimen- sions: Length between perpendiculars, 157 ft.; beam, 17 ft.; depth, 10 ft. 9 in.; displacement on trial, 167 tons; guaranteed speed 28 knots for two hours’ run; indicated horse power, about 4,000. These vessels are each fitted with two Normand water tube boilers of the return-flame type, each boiler having 59 sq. ft. of grate surface and 2,800 sq. ft. heating surface. As will be noted, about 34 H.P. is obtained per square foot of grate on these vessels. The vessels are fitted with twin screws, each operated by a three-cylinder triple expansion engine, with cylinders of 17%, 2434 and 373% in, diameter by 21 in. stroke; revolutions at 4,000 H.P., 306 per min- ute. These vessels are completely equipped with electric light plants, in- cluding search light and all the apparatus usually specified by the navy de- partment for vessels of this class. The monitor Nevada is of the following dimensions: Length over all, 255 ft.; length on water line, 252 ft.; beam, 50 ft.; draught complete, 12 ft. 6 in. This vessel was launched Nov. 24, 1900. The main engines and all the auxiliary machinery are now installed on board the vessel. All the wood armor backing is fitted and caulked. One-third of the side armor is in place, and the barbette armor, conning tower, smoke stack and ven- tilator armor are in place. The cruiser Cleveland is of the Denver class, and of the following dimensions: Length on normal load water line, 292 ft.; breadth of beam, 44 ft.; displacement at 15 ft. 9 in. mean draught, 3,200 tons; guaranteed speed at this displacement, 16%4 knots. All the interior iron work on this vessel and the outside plating is completed, and the bottom of the vessel is riveted and caulked ready to fit the outside sheathing. It is expected to finish the sheathing and launch the last week in July of this year. A steel caisson is also being built at these works for the Portsmouth navy yard dry dock of the following dimensions: Length, extreme, 104 ft. 2 in.; breadth, molded, 22 ft.; depth from bottom of keel to under side of upper deck, 30 ft. 6 in. The caisson is to be supplied with a locomotive boiler and inverted vertical engine of sufficient power to operate two cap- stans and a pump. This firm has been awarded the contract to build one sheathed battle- ship of the Pennsylvania class, at a cost of $3,590,000. This vessel, de- scribed in full elsewhere, is of the following dimensions: Length on load water line, 435 ft.; breadth, extreme, at load water line, 76 ft. 10 in.; trial displacement, 15,000 tons; guaranteed speed at this displacement, 19 knots. This vessel is to have twenty-four boilers of the water tube type for work- ing pressure of 265 Ibs. to a square inch. The boilers are to supply steam to two four-cylinder triple expansion engines of an aggregate horse power of 19,000. The main battery of this vessel will consist of four 12-in. breech-loading rifles of forty calibers in length; eight 8-in. breech-loading rifles forty-five calibers in length; twelve 6-in. breech-loading rapid-fire rifles of fifty calibers in length. The secondary battery is as follows: Twelve 3-in, (14-pounder) rapid-fire guns of fifty calibers in length; twelve 3-pounder semi-automatic guns; four l-pounder heavy automatic guns; four 1-pounder heavy rapid-fire guns; two 3-in. field pieces; two machine guns, .30 caliber; six automatic guns, .30 caliber; two submerged torpedo tubes. The company has also just received an award for one of the three protected cruisers for the United States navy at a cost of $2,750,000. The steam capstans, windlasses and other auxiliary apparatus of like nature on the vessels built by this company are supplied by the Hyde Windlass Co. of Bath, Me. It will be seen by reference to the chief con- structor’s monthly report of percentage of completion of vessels under construction for the United States navy, that the vessels at the Bath Iron Works in every case are at the head of their respective classes. During the past year the compressed air plant has been trebled in capacity by the addition of two Ingersoll-Sergeant electric-driven com- pressors, together with a large increase in the piping system for the dis- tribution of this power to the various parts of the establishment. Author- ity has been obtained to extend the wharf line and building slips 150 ft. into the river, and it is proposed to do that by adding an L wharf on the river side of the present wharves, with a 90-ton derrick located upon it. This will double the present wharf capacity of this establishment. A large building is also to be erected to accommodate carpenter’s lumber, patterns, and for the storage of articles supplied by the government for the various naval vessels under construction. Negotiations are pending in several di- rections for more land in order to increase the size of the building capacity ef the plant.