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stationary approach span 100 ft. 6 in. The length of the tower span is 52 ft. The lift span is operated by hydraulic The tank was. con- structed in the tower is divided into four Two are pressure and pressure. which sections. high two are low pressure. The low pressure tanks are 50 in. diameter and 16 ft. high. The high pressure tanks have a diameter or 00 im aiid are 12H high." The low 150 lbs. pres- sure to the square inch, the others 300 pressure tanks withstand CAPT. Ibs. The high pressure tanks are used in emergency cases only, when it is de- sired to operate slowly in times of wind or storm or after a heavy snowfall. The 150-pound tanks are used for ordinary operation. The signal system has not been installed, but shortly will be and the signals adopted by the United States Lighthouse Board will be used. Electric lights will also be installed on the bridge. Two tenders and one en- gineer are required in the operation of the bridge, working in three shifts. The Osborn Engineering Co., of Cleveland, designed the bridge and Thomas. E. Brown, of New York, supplied the ma- chinery. "TAE. MARINE. REVIEW MARINE LECTURES AT COL- LINGWOOD. In December, 1906, a course of in- teresting lectures was delivered at the Y. M. C. A. 'building at Collingwood on marine matters, particularly to en- courage interest amongst the marin- ers of the district. The government of Canada has taken the matter in hand, establishing the lectureship at different, locations in the dominion, paying the lecturers themselves, and supplying a first class outfit of mod- els, charts, and instruments of. all kinds. At the first meeting there were fifty- nine in attendance, and the average at- tendance during the course of lectures, about thirty. The subjects lectured on consisted of the laws governing the lakes, history and description: of the compass, magnetism, adjustment of the compass, variation and deviation, practical demonstration of the rule of the road, life saving apparatus, anchor- age, flags and_ signals, semaphore, Morse, barometer, thermometer, con- struction of vessel, sails, storage of cargo, insurance, saving life at sea, and 15 other subjects that were instructive and deeply interesting to those that attended. The lectures were illustrated on the black board, but next season it is the intention of the dominion government to supply the lecturer with lantern and slides. Capt. Coles' experience has not been entirely confined to salt water, but he also has had eight years of inland water navigation, British' Columbian = COLES' NAUTICAL CLASS AT COLLINGWOOD. waters and has sailed across Canadian lakes. » It. is understood' that Cant. Coles will take over these lectures next year, and run them on. similar lines. A nautical school will also be es- tablished. Of course there will be a fee, as regards the school, but the lectures will be thrown in, as they are sup- ported by the dominion government. Capt. Coles is also the dominion gov- ernment examiner of masters and mates. Capt. Coles is much pleased wit! the encouragement he has received. He has letters from the dominion government, different associations, steamship managers and from _ quite