5 AUGUST 1865, Page 1

A great Commercial Convention was held at Detroit, in Michi-

gan, on the 10th of July. It was attended by delegates from most of the Boards of Trade in the United States, and by repre- sentatives from British America, the total number present being little under six hundred. The voting appears to have been taken by States, each State having as many votes as it has electoral dis- tricts, and the discussions lasted four days. The Canadians did not vote, but did speak, Mr. Howe, of Nova Scotia, being admit- ted to have made the best speech, and the Americans finally came to three somewhat inconsistent resolutions. First, that the people could only be enabled to bear a high taxation by a strictly pro- tectionist policy which could "secure labour its profit" ; secondly, that a ship canal ought to be dug from Lake Ontario to Lake Erie ; and thirdly, that the President ought, when the Reciprocity Treaty expired, to make another with the same objects, but securing to Americans the free navigation of all British American rivers. • No unkindly feeling was expressed towards Canada, and the leading.,papers of the Union, the Tribune and other strongly Protectionifstlournals excepted, decidedly endorse the opinion of the Convention.