The Physicist's Present Conception of an Atom.

CONTENTS The Physicist 's Present Conception of an Atom: DR. R. A. MILLIKAN ........................................... 473 Remarks on the Scientific Attitude: DR. A. S. HITCHCOCK ........................................... 476 Universities and Learned Societies: PROFESSOR LAWRENCEJ. HENDERSON ........................................... 477 The British Association and the Toronto Meeting ...... 478 Scientific Events: The Biochemical Laboratories of the University of Cambridge; The Rush Medical College and the University of Chicago; The Semi-centennial of Purdue University; Fellowships in Medicine of the National Research Council; The Alabama Academy of Science ........................................... 479 Scientific Notes and News ........................................... 481 University and Educ tional Notes ........................................... 484 Discussion and Correspondence: Effect of Dry Storage on the Antirachitic Potency of Cod Liver Oit: DR. L. C. DUNN. A New Locality for a Species of Diaptomus: DR. C. DWIGHT MARSH. The Use of a Tool: GEORGE C. WHEELER and ESTHER HALL WHEELER. The Addresses of Authors: HARRY S. SMITH. A Correction: PROFESSOR MARST N T. BOGERT ........................................... 485