Camborne School of Mines Magazine Vol.56 2 Copies includes articles on: - 'Editorial' - 'Chemical Tests on Streaks as a Rapid Aid to Mineral Identification' by K.F.G. Hosking -'Notes on Layout and Checking of Mine Survey Computations' by Derek Wilson -'A Short Account of Uranium Mining in the Blind River Region, Ontario, Canada' by D Seneviratne - 'Flat-Back, Cut and Fill Stoping at Zinkgruvan, Sweden' by Desmond D. Drury. - 'Stripa Method for Sink-Float Seperation' by N.J. Sorsby - 'The Occurence of Tungsten in Cornwall' by J.P.R. Polkinghorne -'Selective Grinding of Auriferous Pyrite at the Wright-Hargreaves Mine, Ltd' by S.M. Singh -'Manganese Ore in India' by R.N. Mukherjee -'The Large Pillar Blast in the Helen Iron Mine, Ontario, Canada' by D. Seneviratne -'Obituaries' of A.G. Doyle, R. Gordon and J. Dudley 1956 June