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16 MARINE REVIEW TWIN-SCREW FREIGHT STEAMER BOSTON. The Review briefly mentioned last week the launch at the yard of the Fore River Ship & Engine Co., Quincy, Mass., ef the steel twin-screw freight steamer Boston, built for the Long Island Sound service of the Old Colony Steamboat Co. Further particulars are now at hand. Her general dimensions are as follows: Length moulded on io ft. water line, 201 ft. 3 in.; length over all, 318 ft.; width moulded, widest part, 60 ft. 6 in.; width over guards, widest part, 63 ft.; depth moulded at lowest place in shear, 22 ft. 6 in. The vessel is fitted with double bottom 3 ft. deep in center, extending the length of the machinery space. The propelling machinery consists of two triple-expansion engines, having cylinders 24, 37 and 63 by 42 in. stroke, designed for a working pressure of 180 Ibs. per square inch, which will drive the vessel at a speed of 19 knots LAUNCH OF FREIGHT STEAMER BOSTON, [Building by Fore River Ship and Engine Co., Quincy, Mass. per hour with an indicated horse power of approximately 5,500. Steam is generated in eight Scotch boilers 14 ft. 24% in. in diameter by 12 ft. from head to head. 'There is also a donkey boiler 7 ft. in diameter for supplying steam to the auxiliaries. Forced draft is supplied by two Sturtevant steel plate blowers. The main air pump is driven from the low-pressure cross- head. The other pumps are independent and are as follows: Two 12 by 7 by 12 in. special duplex outside back plunger feed pumps; one 18% by 12 by 12 in. fire and wrecking pump; one 6 by 4 by 7 duplex piston pump for sanitary and water service ; one 5 by 534 by 7 single pump donkey boiler feed; one No. 6 Cameron crank and fly wheel pump for bilge; two 30-in. cir- culating pumps. The circulating pumps are of the centrifugal type, having a t2in. suction and 10-in. discharge, the runner being 30 in. diameter. Each pump is driven by a single vertical engine having a cylinder 7 in. by 7 in. stroke. The Boston has certain improvements in design over other vessels engaged in similar service and is built under rigid in- spection. She is equipped with electric lighting, steam heat- ing and ventilating systems. In addition to carrying freight, she is provided with accommodations for 40 passengers, these accommodations being first class in all respects. President Roosevelt, acting under the authority of the Spooner law, has announced that the salaries of each of the members of the Panama canal commission will be $12,000 per year, with an allowance of $15 per day for each member while on the Isthmus. No allowance is made for expenses while the commissioners are in the United States, but the various expenses of the commission as an official body will, of course, be provided for by further canal legislation. GASOLINE LAUNCHES. The full cabin launch, illustrated herewith, was designed for S. B. Kitchel of Coldwater, Mich., by Frederick S. Nock and built at his yard at East Greenwich, R. I. The length on 'CABIN. LAUNCH; SPEED 17% MILES. deck is 60 ft., on the water line 57 ft., beam extreme 8 it., draught of hull 2 ft., draught under propellers 2 ft 9 in. Her accommodation, considering the fact that she was built for a fast boat, are excellent, consisting of a pilot house 7 ft. long, main cabin 7 ft. 6 in. long, with galley and toilet room between. The construction of the boat is about medium, the planking of yellow pine being 1 in. at the garboards and 7% in. at the sheer strake. The upper strakes are in one length from stem to stern, as also are the keelson, keel, bilge clamps, deck clamps, etc. The fastenings are yellow metal screws. The finish of the boat both inside and out is of mahogany. 'The power plant con- sists of two Buffalo motors capable of developing about 4o H. P. each. The propellers are small, being but 30 in. in diameter and the pitch 36 in. During her maiden trip to Albany she - made a run of 126 miles in 8 hours and 3 minutes, part of which time she was running under one engine alone on account of one of the bearings in the starboard engine being heated. The latter part of the trip was made at about 17% miles an hour. Accompanying is also a photo of the launch Circe, which I.AUNCH CIRCE; SPEED 18 MILES. has a record of 12 miles an hour. She is not, however, a racing machine but a good able craft. The general dimensions are as follows: Length over all, 28 ft.; length water line, 26 ft.; beam, 6 ft.; draught, 1 ft. The motors were manufac- tured by the Buffalo Gas Motor Co. Several of the Circe type of boats have been placed in various parts of the country and have given much satisfaction. With the appointment of H. H. Gildersleeve as manager of the Northern Navigation Co. there is a general change in the staff. W. Askin, heretofore assistant manager at Sarnia; A. B. Pratt, heretofore assistant manager at Collingwood, and A. Cowan, freight agent at Toronto, have resigned, and will be connected with the new company now being formed of the Canada Lakes & Ocean Navigation Co. and the New Ontario Steamship Co. F. P. Belcher, traveling freight agent at Winnepeg, has resigned.