'Feuille d'érable - p4g - Maple Leaf' by François Brisse : Logo of the Canadian National Committee for Crystallography (CNCC)

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Feuille d'érable - p4g - Maple Leaf
[Feuille d'érable - p4g - Maple Leaf]

History of the Canadian National Committee for Crystallography (CNCC)

Early history of the CNCC

Canada was the third nation to join the IUCr where Dr William Howard Barnes (1903-1980) (pictured below) played a major role in persuading the National Research Council in 1948 to adhere to the IUCr for Canada. Dr Barnes was also chair of the Canadian National Committee for Crystallography from 1948 until 1966. (Acta Cryst, 1981, A37, 269)

Dr William Howard Barnes (1903-1980) .

Dr William Howard Barnes (1903-1980)

Via the CNCC, IUCr Congresses were held in Canada in Montréal (1957) and Ottawa (1981).

The decision making behind holding the 1957 IUCr Congress in Montréal is described in H. Kamminga's article "The International Union of Crystallography: its formation and early development" (Acta Cryst. (1989). A45, 581-601):

No international organization, regardless of its ideals, can avoid altogether problems of a political nature. To be sure, the IUCr has always vigorously supported the aims of international collaboration in science and free circulation of scientists. Already very early in its history it had occasion to speak out on this matter when Jean Wyart, one of the Union's officers, was refused a US visa by the American Consul in Paris and could not, therefore, attend the 1948 Congress at Harvard University. The IUCr took up the matter with the National Research Council and the US Government, but the reason for the refusal was never revealed to the Union. This case caused the US crystallographic community considerable embarrassment which, many years later, led the US National Committee to propose Canada, rather than the USA, as the preferred North American venue for the Fourth General Assembly in 1957 (see Evans, 1983). The Assembly was held in Montreal, with financial and organizational support from both the US and the Canadian National Committees. The Union did not meet again in the USA until 1969, when the Eighth General Assembly was held in Stony Brook, New York.




Canadian Institute for Neutron Scattering

The CNCC would like to thank the Canadian Institute for Neutron Scattering for initial assistance it provided in creating this website.