Camborne School of Mines Journal Vol.73 2 Copies includes articles on: - 'Photographs of the progress to date on the new Camborne School of Mines building. - 'Foreword by the Principal Dr P. Hackett'. - 'The Problem of Iron in Tin Smelting' by P.A. Wright. - 'Slope Height - Slope Angle Charts as an aid to Slope Design' by G.M.M. Ley. - 'Principles of the Selective Flocculation of Minerals from Mixtures using High Molecular Weight Polyelectrolytes' by R.W. Dexter and D.G. Osborne. - 'An Elastic Approach to Trough Subsidence' by A.S. Batchelor. - 'Marine Geophysical Survey, North Coast of Cornwall - A Preliminary Report' by M.J. McCullough - 'The Development of Statutory Duties in Relation to the Mining Industry in the United Kingdom' by Linda P. Batchelor. - 'Streaming Potential Measurement as the Key to Concentrating Surface Selection' - Reports on the deaths of S.H.Alder, J.B.Dennison, T.A.W. Haddon, R.S. Mackilligan, A.C. Owen, T. Pryor, G.E.P. Roberts, G.W. Simms, J.T. Thomas and D.M. Williams 1973