9:30 a.m. - College ofPhysicians, Mitchell Hall.

1. The Etiology ofBronchiectasis�Pathological, Bacteriological and Experimental Study

Dr. David T. Smith, Ray Brook, New York.

2. TheClosure of Bronchial Fistulae

Dr. Arthur W. Shipley, Baltimore,Maryland.

3. BronchialStenosis

Dr. L. Eloesser, San Francisco, California.

4. Observations on thePulmonary Artery Pressures with Experimentally Produced Arterio-venous Fistulae

Dr. John H. Gibbon, Jr. (by invitation).

Dr. Edward D. Churchill, Boston, Massachusetts.

5. ObstructivePulmonary Atelectasis. Certain Considerations Relative to Pathogenesis andManagement

Dr. C. M. Van Allen, NewHaven, Connecticut.

6. The Role ofAlveolar Gas Exchanges in the Production of Atelectasis. Experimental Study

Dr. Pol. N. Coryllos and Dr. G. L. Birnbaum (byinvitation) New York City.