International Congresses 295 



mediate succession in two different countries. It was done to compensate for the 

 very long interruption caused by the war. 



International Chemical Congresses: 



I. Karlsruhe 1860 VI. Paris 1878 



II. Paris 1867 VII. Dusseldorf 1880 



III. Moscow 1872 VIII. Milano 1881 



IV. Vienna 1873 IX. Paris 1889 



V. Philadelphia 1876 X. Chicago 1893 



Succeeded by the International Congresses of pure and apphed Chemistry: 



I. Bruxelles 1894 VII. London 1909 



II. Paris 1896 VIII. Washington & New York 1912 



III. Vienna 1898 IX. Madrid 1934 



IV. Paris 1900 X. Roma 1938 



V. Berlin 1903 XI. New York & Washington 1950 



VI. Roma 1906 



The congress organized in Karlsruhe in Sept. 1860 upon Kekule's initiative was 

 one of the first scientific congresses; it was very small (some 140 members) but it is 

 very important in the history of the atomic theory (Isis 9, 373). 



International Conferences of Chemistry: 



I. Roma 1920 VIII. Warsaw 1927 



II. Bruxelles 1921 IX. The Hague 1928 



III. Lyon 1922 X. Liege 1930 



IV. Cambridge 1923 XI. Madrid 1934 



V. Copenhagen 1924 XII. Luzern & Zurich 1936 

 VI. Bucharest 1925 



VII. Washington 1926 XV. Amsterdam 1949 



XVI. New York, Washington 1951 



International Congresses of Chronometry: 



1. Paris 1889 (x). Paris 1949. 



2. Paris 1900 



To these meetings must be added the annual meetings of the Conference Inter- 

 nationale de I'heure, organized by the Bureau des longitudes, Paris 1912. The 

 Bureau international de I'heure is located since 1913 (officially 1919) in the Obser- 

 vatoire of Paris. 



For the meeting of 1949 see Revue des questions scientifiques (10, 408-10, 1949). 



International Congresses of Crystallography: 



The first congress of the International union of crystallography took place in 

 Cambridge, Mass., in 1948. The proceedings of it are published in the Acta 

 crystallographica. 



The second congress will be held in Stockholm in 1951. 



Address: Dr. R. C. Evans, Cavendish Laboratory, Cambridge, England. 



International Congresses of Classical Studies: 



The first congress took place in Paris 28 August — 3 Sept. 1950 in connection 

 with the IXth International Congress of historical studies. The original French title 

 is Premier congres de la Federation internationale des Associations d'Etudes clas- 

 siques. 



Secretary: M. A. Dain, 42 rue de Dantzig, Paris 15. 



International Congresses of Entomology: 



I. Bruxelles 1910 VI. Madrid 1935 

 II. Oxford 1912 VII. Berlin 1938 



III. Zurich 1925 VIII. Stockholm 1948 



IV. Ithaca, N. Y. 1928 IX. Amsterdam 1951 

 V. Paris 1932 



International Congresses of Ethnography: 



I. Paris 1878 III. Paris 1900 



II. Paris 1889 



