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ANSWERS TO QUESTIONS FOR WHEELSMEN AND WATCH- MEN. 307. The following diagrams ane the answer to question 307: 308. The steamer which has the other on her own port side shall hold her course and speed. This ts the same thing as the old rule: when to starboard red appears it is your duty to keep clear--port and go astern. 309. The one steering N E. The steamer steering N W has the right of way by the rules but she gave up her nights when she answered with two blasts. If she did not want to give up her right of way she would be required to sound an alarm signal and then one blast of the whistle and the other should answer. 310. The one steering N W would naturally starboard, though if in very close quarters, stop and back. 311. Would sound an alarm and blow one blast. The other would answer, and if necessary put her helm ' to port and go astern of the other while the other would hold her course and speed. 312. In this situation the two steam- ers are so far apart that the one to port, which in close quarters must keep lout of the way, may cross first, after, giving necessary signals, and receiving the assent of the steamer to starboard. 313. One Steamer is overtaking another, The overtaking steamer may pass on either side of the steamer ahead after the necessary signals for passing are given and answered prop- erly. 314. Starboard and port helm; red and green lights and one and two blasts of the steam whistle. 315. The one that has the other on her own starboard side. 316. Yes. 317. The statute mile is an arbitrary measurement. It contains 5,280 feet. It was so fixed by law and has no eonnection with a scale of nature. 318. 5,280 feet. QUESTIONS FOR WHEELSMEN AND WATCHMEN. 345. You have run 123 miles by log (knots), how many statute miles have you run? 346. How many feet in 7 statute miles? "TAE MARINE. REVIEW 347. How many feet in 12 nautical miles? 348. What is a true course? 349. What is a correct magnetic course? 350. What is the difference between a true course and a correct magnetic course? 351. If you apply 'the variation to a true course, what kind of a course do you get? 352. What is the difference between a correct magnetic course and a com- pass course? 353. What is variation of the com- pass? 354. How many kinds of variations. are there? 355. How does the variation get its name? 356. What is deviation? QUESTIONS FOR MASTERS AND MATES.--NO. 55. 726. Why is it that the compass works so much more sluggish on Lake Superior than the other lakes? 727. What is the amount of the dip on Lake Superior? 728. Compared with the other lakes how much less is the 'horizontal force on Lake Superior? 729. Why is the heeling deviation greater on Lake Superior for the same heel than on the other lakes? 730. What is tthe mean variation between Passage Island and White- imgiol IEXe, 731. What is a drag, how con- structed and what used for? 732. Ona lee shore in a heavy gale of wind your steering gear became disabled, what would you do? 733. How many feet to a knot on a log line based on tthe statute mile? 734. How many feet if based upon the length of the nautical mile? 735. How do you place ship's head 'correct magnetic by pelorus? 736. How would you do it without azimuths? 737. How do you separate quadran- tal from semi-circular deviation? RISDON IRON WORKS. The Risdon Iron & Locomotive Works, San Francisco, Cal., have in hand considerable work- pany is supplying a triple-expansion engine, 13, 21 and 34 in. cylinder di- ameters by 24-in. stroke, supplied with one Risdon water-tube boiler, 2,200 sq. ft. heating surface and one vertical donkey boiler 5 ft. in diameter and 8 ft. high for the steamer Wm. H. Murphy, building for the Pacific Lum- her Co, Lhe bull vot (the steamer, which is 206 ft. long, 39 ft. beam, and The com- 27 14 ft. deep, is being built by the Mat- thews Ship Building Co., Hoquiam, Wash. The company is also building a triple-expansion engine of the same dimensions for the steamer Clermont, owned by the Hart-Wood Lumber Co., San Francisco. The hull of the steam- er, which is 187 ft. long, 38 ft. beam and 13 ft. 6 in. deep, is being built by the Lindstrom Ship Building Co., Aberdeen, Wash. They are also sup- plying two high-pressure condensing engines 18-in. cylinder diameters by 72-in. stroke, supplied with two dry back boilers 18 ft. 6 in. diameter and 16 ft. long for the stern-wheel steamer Hercules owned by the E. I. DuPont de Nemour Powder Co. of New York. The hull of this steamer which is 160 ft. long, 36 ft. beam and 7 ft. deep, is being built by the Pacific Ship Yard & Ways Co., Alameda, Cal. The Ris- don Iron Works are also building a clam-shell dredge for the trustees re- clamation district for use on the Sac- ramento river. The hull is of wood, 130 4 longs, 61> tes beam arice so: ante deep, equipped with a boom 170 ft. long and a bucket 5 yds. capacity. The installation is very complete without, including electric light plant, steam capstan, etc. LAUNCHING THE B. F. BERRY. The steamer B- F. Berry, building for the Fremont Steamship Co. of Detroit, which was organized by H. K. Oakes, was launched from the Lor- ain yard of the American Ship Build- ing Co. on Saturday last and was christened by Mrs. B. F. Berry in honor of her husband. The Berry is 569° ft. over all, 549 it. keel 56 if beam and 31 ft. deep. She has 34 hatches spaced 12-ft. centers. Her en- gines are triple-expansion with cylin- ders 24, 39 and 65 in. diameters by 42-in. stroke, supplied with steam from Scotch boilers, 15 ft. 4 in. diam- eter by 11 ft. 6 in. long, equipped with Ellis & Eaves draft and allowed a working pressure of 180 Ibs. She will carry 10,000 gross tons of ore. Among those who attended the launching were R. E- Collins of De- troit, Mr. and Mrs. F. J. Sullivan. of Cleveland, Mr. and Mrs. Alexander Hynd of Cleveland, S. J. Bolwing, Mr. and Mrs. James Nacey of Cleve- land, R- Chalmers of New York, E. J. Earling of Milwaukee, J. A. Curtis of Detroit, D. Sullivan of Chicago, H. K. Oakes of Detroit, John Walsh of Detroit, Victor Breslin of Detroit, and Mr. and Mrs. C. D. Jury of Cleve- land. Capt. Dennis Sullivan of Chicago will manage the steamer. ;