sentences:  DOSCO wasn't quite finished with its CR&C subsidiary.In 1961, DOSCO had the Cumberland Railway (which, like its predecessor the Spring Hill and Parrsborough Railway had a federal railway charter, thus qualifying it for federal railway subsidies) assume the operations of the Sydney and Louisburg Railway on Cape Breton Island.The reason for this change in title was that the S&L had been formed under a provincial charter in 1910, which made it ineligible for federal railway subsidies.