A certificate admitting Philip Keith M'Pherson as a member of the Society of Instrument Technology with a letter from A.A.W. Pollard, Secretary, The Society of Instrument Technology, 20 Peel Street, London, to P.K. M'Pherson, Control and Instrumentation Division, Atomic Energy Establishment, Winfrith, Dorset, dated 29th July 1964 forwarding the certificate. Also included is a copy of the memorandum and articles of association of the Society of Instrument Technology. Material relating to membership of the Society of Instrument Technology
Transactions of the Society of Instrument Technology containing the following papers: 'Application of Complex Plane Methods to System Design' by P.K. M'Pherson, 'On-Line computers for process control' by J.F. Roth, 'A digital position control applied to a 50 h.p. d.c. mill motor' by W.L. Marks, P. Pigott and B.G. Starr, 'A digital position control for a steel mill screwdown' by I.A. Dempster, 'Digital tachometry' by M.W. Sage and J.A.L. Berry, and 'Review of digital computer control applications' by Dr. E.M. Grabbe. Transactions of the Society of Instrument Technology Volume 14 Number 2
