Nature and Fate of the Meteor Crater Bolide.

Nature and Fate of the Meteor Crater Bolide: PROScientific Apparatus and Laboratory Methods: FESSOR HERMAN L. FAIRCHILD ........... ............. 463 An Objective Method of Evaluating Musical Performance: PROBESSOR CARL E. SEASHORE and Microphonic Action in Telephone Transmitters: DR. JOSEPH TIFFIN ........... 480 FREDERICK S. GOUCHER ................. 467 Special Articles: Obituary: The Treatment of Patients with Addison's Disease Memorial to James Melville Gilliss; Recent Deaths 470 with the "Cortical Hormone" of Swingle and Pfiffner: DR. LEONARD G. ROWNTREE and DR. CARL ScientificEvents: H. GREENE; PROFESSOR W. W. SWINGLE and DR. Theamerican Association's Grants for Research; J. J. PPIFFNER. On the Chemical Alteration of Health Surveys by the Yale School of MLedicine; Purified Antibody-proteins: DRi. L. REINER ................... 482 Enlargement of the Harvard Physical Laboratories; The Semi-centennial of the New Jersey Science News ...................................... x State Experiment Station .....472........................................ 472