Contents

31 August 1973
Vol 181, Issue 4102

About The Cover

Stone decay in the industrial atmosphere of the Rhein-Ruhr; sculpture is of porous Baumberg sandstone (Upper Cretaceous)at Herten Castle near Recklinghausen, Westphalia, Germany, built in 1702.(Left) Appearance in 1908, withlight to moderate damage. (Right) Apperance in 1969, showing almost complete destruction. See review of Stone, page 839. [Schmidt-Thomsen, Landesdenkmalamt, Westfalen-Lippe, Muenster, Germany]