p.2 Port Colborne, Oct. 10th - Down - schr. Mystic Star, Milwaukee, Oswego, wheat; Nellie Hunter, Cleveland, Toronto, coal; Senator Blood, Detroit, Oswego, wheat; barque Montmorency, do., Ogdensburg, do.; schr. Gleniffer, Milwaukee, St. Catharines, do.; Montpelier, do., Oswego, do.; L.L. Lamb, Detroit, do., do.; J.R. Noyes, Milwaukee, do., do.; A. Ford, Toledo, do., do.; John Magee, Chicago, do., do.; Smith & Post, Detroit, do., do.; Theo. Perry, Toledo, Ogdensburg, corn and wheat; Almada, Detroit, do., wheat; Jennie Matthews, Chicago, Oswego, corn; Marysburg, Ashtabula, Toronto, coal; Clara Young.
Up - schr. Mary Lydia, St. Catharines, Port Burwell, light; barge O.J. Hale, Oswego, Toledo, do.; schr. T. Simms, Fair Haven, Toledo, coal; A. Falconer, Oakville, do., barley.
In Harbour - wind bound - schr. John Dunn, barges Manly, Keating, Hale; Jenkins, T. Simms, Star, Mary Lydia, A. Falconer.
Arrived to Holcomb & Stewart - schr. E. Hall, from Picton, 7,000 bush. peas; tug Wren, from Montreal, with barges Eagle, Linnet, Swan, Robin, Annie, Martin and Star.
Jones & Millar - prop. Shickluna, from Detroit, with 4,000 bush. wheat; barge Minnie, with 220 tons phosphate of lime and 4,000 bushels of wheat.
Jas. Swift & Co. - str. Corinthian from Montreal; prop. Persia, do.; str. Corsican, do.; prop. Bruno, do. Str. City of Kingston left for Oswego (sic); schr. Homeward Bound, 207 tons nut coal, from Oswego.
Cleared - schr. Richardson, for Oswego, 9,500 bush. barley, shipped by Mr. J. Richardson. Schr. Active to Oswego, 4,500 bush. barley, shipped by Mr. J.D. Sills.
Customs Imports - Oct. 8th - Schr. Union, Sandy Creek, 926 bxs. cheese, G. Morton.
Oct. 10th - Schr. Oriental, Sault Ste. Marie, 196 pcs. pine timber, Calvin & Breck.
Bark Augusta, Bay City, 28,900 W.I. staves, 5,168 pipe staves, 175 pcs. oak timber, Calvin & Breck.
Dangers of Navigation - Lake navigation, it has been asserted by those who have sailed both at sea and on fresh water, is attended with far more dangers than ocean navigation, and each and every season is attended with a greater loss of property. Up to this period it is shown by the records that Lake Huron has been far the most destructive in the foundering of vessels and property lost in other ways, yet in the loss of life it is a trifle behind Lake Michigan, and so far as protection to shipping is concerned, they are about the same. The mean depth of Lake Huron is said to be 750 feet, Lake Michigan 700 feet, Lake Superior 800 feet, Lake Erie 204 feet, and Lake Ontario 600 feet. The total length of the five great lakes is said to be 1,345 miles, and the area 84,000 square miles. The heaviest gales and attended with the greatest loss of life and property were those of 1835, 1837, 1839, 1844 and 1860, all occurring during the month of November, save that of 1844, which took place on the 18th of October.