THE anniversary meetings of the Chemical Society were held in London on March 29–31. On March 29, the Kutherford Memorial Lecture entitled “Lord Rutherford: His Life and Influence on Chemistry” was given by Sir Henry Tizard, at the Royal Institution (see p. 651). In the evening, fellows of the Society and their guests, numbering in all about four hundred, were entertained by the chairman and directors of Imperial Chemical Industries, Ltd., at Imperial Chemical House. On March 30, there were visits in the morning to Bedford College for Women and to the Wellcome Research Institution, where conducted parties were taken over the Museum of Medical Science and the Historical Medical Museum and the Chemical and Physiological Research Laboratories. In the afternoon, the business part of the annual general meeting was held at Burlington House, and the presentation of the Longstaff Medal for 1939 was made to Prof. I. M. Heilbron and of the Harrison Memorial Prize for 1938 to Mr. Alexander King. Prof. F. G. Donnan then delivered his presidential address entitled “The Role of Osmotic Pressure in the Development of Chemical and Biochemical Science”. The anniversary dinner was held the same evening at Grosvenor House, the number present being 270. Prof. F. G. Donnan occupied the chair, the principal guest of the evening being Viscount Samuel. On March 31, there were visits to the British Drug Houses, Ltd., and also to the Central Laboratories of the Shell Marketing Co., Ltd., at Fulham. In the afternoon, there were visits to the Research and Development Department of the Distillers Company at Great Burgh, Epsom, and to the Laboratories of the Research Association of British Paint, Colour and Varnish Manufacturers at Teddington. The following have been elected officers of the Society: President, Sir Robert Robinson; Treasurer, F. P. Dunn; Secretary, Prof. G. M. Bennett.