A 108-year-old elm tree on the grounds of the John Brown House in Providence will soon be cut down after acquiring a deadly fungal infection. The Rhode Island Historical Society announced the news Friday. It was initially believed the historic elm was stricken with Dutch Elm disease, a highly contagious affliction that could have put other trees at risk. But specialists concluded that the tree was instead suffering from a canker disease. The Historical Society is working with local woodworkers and a furniture designer on the faculty at the Rhode Island School of Design to create wood objects from the tree. The tree was planted in 1905.