Lauren-Brook Sickels Organic Additives in Mortars E.A.Lord and C.B.Wilson Prediction of the Behaviour of Physical Systems Jeong-Keun Lee Collective Representation and Yin-Yang Dialectics Malcolm Higgs John Ruskin and the Quiet Revolution in the Architecture of Edinburgh Patrick E.Sekyi Evolution of the Concept of National Park in the United States and Britain James H.Nash Interactive Drawing Systems Illustrated by TSAG Young Chul Kim The Energetics of Space and Matter: An Architectural Interpretation Current Postgraduate Research Abstracts Completed Research Abstracts Nov 4, 2011