THE American Association for the Advancement of Science will hold its ninety-seventh meeting at St. Louis, commencing on December 30. On the first evening, the retiring president, Dr. Edward L. Thorndike, will deliver an address entitled: “Science and Values”. Among the special lectures are J. B. Taylor, “The Electric Eye and the Human Eye” (Sigma xi Address); Prof. J. E. Woodridge, “The Claims of Science” (first of series of annual lectures to be arranged by the United Chapters of Phi Beta Kappa); Dr. H. G. Moulton, “The Scientific Method in the Investigation of Economic Problems”; Dr. B. A. Houssay, “Hypophysis and Metabolism”; Dr. Karl F. Meyer, “Plague, Past and Present”; Dr. E. H. Barbour, “The Proboscidea of the Plains”; Prof. F. Slocum, “The Changing Picture of the Universe”; Dr. V. O. Knudsen, “The Absorption of Sound in Gases”; Dr. V. Bush, “Mechanical Analysis” (Josiah Willard Gibbs Lecture). A meeting will also be arranged between the secretaries of sections and affiliated societies and representatives of the Press to discuss the broader principles or the technique of the popular presentation of science. Further information can be obtained from the Permanent Secretary, Dr. Henry B. Ward, Smithsonian Institution Building, Washington, D.C.