Heat Treatment of Geuda Stones - Spectral Investigation
Volume 21 No. 7. July 1989 ^e Journal of SUDAN Gemmology GEMMOLOGICAL ASSOCIATION OF GREAT BRITAIN OFFICERS AND COUNCIL President: *Sir Frank Claringbull, Ph.D., EInst.E, FGS Vice-President: R. K. Mitchell, FGA Chairman: *D. J. Callaghan, FGA Vice-Chairman: *N. W. Deeks, FGA Honorary Treasurer: *N. B. Israel, FGA Members elected to Council: *A. J. Allnutt, M.Sc, J. W. Harris, B.Sc, D. Morgan, FIBF, FGA Ph.D., FGA M.Sc, Ph.D. *J. B. Nelson, Ph.D., *E. M. Bruton, FGA J. A. W Hodgkinson, FGA FRMS, F.Inst.E, FGA *C. R. Cavey, FGA D. Inkersole, FGA W Nowak, C.Eng., E J. E. Daly, B.Sc, B. Jackson, FGA ER.Ae.S., FGA FGA *E. A. Jobbins, B.Sc, C.Eng., M. J. O'Donoghue, *A. E. Farn, FGA FIMM, FGA MA, FGS, FGA A. J. French, FGA *G. H. Jones, B.Sc, Ph.D., *P. G. Read, C.Eng., G. Green, FGA FGA MIEE, MIERE, FGA *R. R. Harding, B.Sc, D. G. Kent, FGA *K. Scarratt, FGA D.Phil, FGA D. M. Larcher, FGA *C. H. Winter, FGA ^Members of the Executive Committee Branch Chairmen: Midlands Branch: J. Leek, FGA North-West Branch: R. Perrett, FGA South Yorkshire & District Branch: G. A. Massie, FGA Examiners: A. J. Allnutt, M.Sc., Ph.D., FGA D. G. Kent, FGA E. M. Bruton, FGA P. Sadler, B.Sc, FGS, FGA A. E. Farn, FGA K. Scarratt, FGA R. R. Harding, B.Sc, D.Phil., FGA E. Stern, FGA E. A. Jobbins, B.Sc, C. Eng., FIMM, FGA M.
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