Camborne School of Mines Magazine Vol.57 2 Copies includes articles on: - 'Editorial' - 'The Identification - Essentially by Staining Techniques - of White and Near - White Mineral Grains in Composite Samples' by K.F.G. Hosking -'Proto' Rescue Team Work on the Copperbelt of Northern Rhodesia' by V.H.R. Oliver -'Developments in Table Flotation' by F.B.Michell - 'The Boliden Scraping System' by R. Taylor - 'Wet Magnetic Separation of Feebly Magnetic Minerals' by G.H. Jones - 'Square-Set Stoping at the Levack Mine, Ontario' by E.H. Kliskey -'Torpedo Raising in Sweden' by Brian Kerns -'A Survey of African Labour Organisation' by M.J.H. Tonking -'A Compass and Speedometer Traverse' by Derek Wilson -'Obituaries' of Gilbert McPherson. -'Club Notes' 1957 June