Box Elder News Journal | 1917-08-07 | Page 3 | Much of Tree Wasted

much of tree wasted about 12 por per cent of tile the volume of d the ordinary tree is hark bark and little use lias has heretofore beep been made ol of bark except as a source of tannous extract recent investigations resulted in the development of a process by which spent tanbark can an he be profeta profitably ly used in the manufacture of asphalt shin agles thereby materially increasing the value of this bark