The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

CHANGES AND ADDITIONS. 15 |» St. Louis River Buoy, No. 26.--A red spar in the position formerly occupied by St. Louis River Post Light, No. 12. Big Island, left tangent, ESE. 34g E., 2,800 feet. Big Island Triangulation Station, northwesterly point, S. by W. % W., 4,200 feet. St. Louis River Buoy, No. 28.--A red spar in the position formerly occupied by St. Louis River Post Light, No. 14. Big Island, N. point, ESE. y ©. 1.150 feet. Big Island Triangulation Station, northwesterly point, >. 96 VW... 2,850 feet. St. Louis River Buoy, No. 30--A red spar in the position formerly _©ccupied by st. Louis River Post Light, No. 16. Big Island Dock, outer end, 2. % 5., 1,225 teet.. Big Island Triangulation Station, northwesterly. poimt, S. by E. 9/16 E., about 1,700 feet. St Louis River Buoy, No. 32.--A red spar in the position formerly octcu- piedby St. Louis River Post Light, No. 18. Big Island Triangulation Station, northwesterly point, E. % N., about 1,100 feet. Big Island, right tangent, 5. by E., about 2,300 feet. | St. Louis River Buoy No. 34.--A red spar in the position formerly Secupied by ot. Louis River Post Light, No. 20. Big Island Friangulation Station, northwesterly point, NE. by N., about 2,150 feet; Big Island, right tangent, SE., about 800 feet. St. Louis River Buoy, No. 36.--A red spar in the position formerly occupied by St. Louis River Post Light, No. 22. Small island, westerly of Big Island, left tangent, WNW. % W., 1,050 feet. Big Island, left tangent, N. by WW. &% W., 625 feet. st. Louis River Buoy, No. 24.--A red spar, was renumbered, 38. Slate Islands.--On the opening of navigation, the light shown from. Slate islands lighthouse will be improved by the substitution of a fourth order dioptric illuminating apparatus for the seventh order lens heretofore used. The light shown will be a fixed white light. CARIBOU ISLAND LIGHT STATION.--The light shown from Cari- bou Island lighthouse has been changed from a revolving white catoptric light to a white light occulted at short intervals. The illuminating appara- tus will be dioptric of the fourth order, and the illuminant acetylene. Thunder Bay--Fort William--Storm Signal.--The storm signal mast at Fort William, Thunder Bay, Lake Superior, has been moved from the coal dock to a position on the river bank adjoining the boat house of the Fort William Rowing Club. Electric light night signals have been installed.