Sault Ste. Marie, Mioh., Nov. 7.- Tho Bteamer Missoula is now four days overdue and no boats arriving have seen anything of her. Not ths slightest clew can be obtained of her whereabouts. No tidings have been reoeived from the searching expedition which left hcre to look for the steamer, but her owner is confident she is somewhere on the north shore ol Lake Superior with disabled machinery. Captain Thomas Wilson, the ownor ol the missing boat, is thoroughly alarmed, and has fears for the safety of the boat and crew.