1920. 4th Edition. 174 pages. No dust jacket. Brown cloth. Pages are moderately tanned and thumbed at the edges, with moderate foxing. Binding has remained firm. Boards have been moderately rub worn. Noticeable shelf wear to corners, spine and edges. Corners are bumped and a little frayed Spine ends are crushed, with noticeable splits and chips. Heavy tanning to spine and edges.