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A portrait of Nelson's most famous son dominates the entrance to the exhibition

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The Bishop of Nelson, the Rt Rev. P. E. Sutton, inspects a section of the display

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Lord Rutherford's grandson, Professor P. H. Fowler, gave a lecture entitled "Tracks of atomic particles, ancient and modern "as part of the centenary. With Professor Fowler, left, are the Mayor and Mayoress, Mr and Mrs Trevor Home and Mr P. G. Fenemore of the D.S.I.R., Nelson, and his wife

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Among those who attended Professor Fowler's lecture, were the president of the Royal Society of New Zealand, Dr R. W. Willett, left, Lady Marsden, the widow of Sir Ernest Marsden, a colleague of Lord Rutherford, and the Deputy Mayor, Mrs B. R. Eyre

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Studying some of the old photographs at the exhibition are a former head boy of Nelson College, Mr H. P. Hunt, now a civil engineer in Christchurch and Mr H. F. Allan, a retired science teacher at the college and chairman of the Rutherford Centenary Committee

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Mark Boland and Ian Fehsenfeld learn all about uses of the carbon isotope ratio. Carbon dating is another Rutherford-inspired method

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Jack Delaney of the N.Z.E.D. explains to Mr R. W. Martin about the nuclear generation of electricity

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A telephone installed to show the pattern of one's voice on a screen ran up a fair "telephone bill." Here Jeremy Cooper chats away while Tony Wilson (Wairarapa), Michael Cooper, Laurie Juno (Wairarapa) and Chris Jansen appear intrigued by the bouncing light on the screen

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Mr J. A. Harley admires the collection of Rutherford family photos, believed to be the best ever assembled