Neil Isaacs, Uli Arndt, Jose Varghese.

Henk Schenk (centre) with students.

Front: David Brown, John Rollett.

Neil Isaacs (right, at rear).

Bob Diamond (second from left at front), David Brown (right).

Yu Wang (second from left).

Neil Isaacs (left), Syd Hall (third from left).

Gérard Bricogne (third from left).

John Rollett (third from left).

Syd Hall (in checked shirt), Neil Isaacs (right).

N. Kato, T. Ashida, Y. Satow.

Jerry and Isabella Karle (centre).

Yu Wang, ?, Syd Hall, Gérard Bricogne.

John Johnson (left).

Syd Hall, Henk Schenk.

Uli Arndt (left).

Ted Maslen (centre background), Bob Diamond.

Left: Yasushi Kai, John Rollett, Peter Murray-Rust.

F. Marumo (left).

Michael Woolfson (left), I. David Brown (second from right).

Tamaichi Ashida (second from right).

Gérard Bricogne.

Henk Schenk, Tamaichi Ashida, Syd Hall.

Shen Wei (left).

Gérard Bricogne (third from left).

Left to right: J. M. Bijvoet, J. F. Schouten, H. Lipson, E. G. Cox, C. H. MacGillavry, M. F. Perutz, C. W. Bunn, C. A. Beevers, R. Pepinsky, J. M. Robertson and E. Grison. (Plate 13 from the American Crystallographic Association monograph [McLachlan, D. Jr & Glusker, J. P. (1983). Editors. Crystallography in North America, p. 191. New York: American Crystallographic Association].)

Ray Pepinsky explaining the X-RAC analogue computer system for Fourier syntheses and display of contour maps. Left to right: I. Fankuchen, J. M. Robertson, Low, Hughes, Friedman, D. Wrinch, R. Pepinsky.

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems. The structure model on the table appears to be a Leybold phenakite (label missing). The drawing on the wall is probably an incorrect model for serine. The machines are most likely IBM numeric duplicating key punch, 10043, Type 012 (which replaced the IBM electric key punch Type 011 used for the Shaffer paper); IBM horizontal sorter, 55645, Type 080 Model 1; and IBM electric accounting machine (or alphabetic tabulator) with direct subtraction and 88 type bars fitted with 7 extra 'X-distributors' for a total of twelve, 10978, Type 405. The key punch operator at the bottom left is long-time Caltech employee, Lillian Casler. The names of the other two operators could not be identified.

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems

IBM (Hollerith) operators at the Caltech Computing Center machine room performing crystallographic computation using the IBM card punch systems

Osaka International Convention Centre (Grand Cube Osaka).

Osaka International Convention Centre.

Osaka International Convention Centre.

Osaka International Convention Centre.

Rest area.

View of Osaka from Osaka International Convention Centre.

Reiko Kuroda reading a Congratulatory Address from the Prime Minister of Japan.

Professor B. R. Henry, Vice-President of ICSU (International Council for Science), describing the role of Union members in implementing the ICSU Strategic Plan.

IUCr Past President Bill Duax.

Welcome by the Governor of Osaka Prefecture, Toru Hashimoto.

David Sayre.