IUCr Executive Secretary

The Executive Secretary of the IUCr (Mr M. H. Dacombe) may be contacted at:

International Union of Crystallography
2 Abbey Square
CHESTER
CH1 2HU
England

Telephone: International dialing prefix + 44 (1244) 345431

Fax: International dialing prefix + 44 (1244) 344843

Telex: 669755 OFFICE G attn UNICRYSTAL

E-mail: execsec@iucr.org

Drawing by Robert Jones

IUCr Secretariat Copyright © International Union of Crystallography