Obituaries and tributes by Lord Halsbury, and others.

'Christopher Strachey: A Personal Reminiscence' by David Barron.

Also included here is a typescript of 'An Appreciation of Christopher Strachey and his Work' by D.S. Scott, published as a Foreword to J.E. Stoy: Denotational Semantics: The Scott-Strachey Approach to Programming Language Theory, M.I.T. Press.

Some of the material has been drawn on in framing several of the catalogue entries.