Given here are reports on the scientific and business meetings held in Baltimore involving Commission 9 only. Reports on the following Joint Commission Meetings co-sponsored by Commission 9 (JCM 3 and JCM 6), and on three additional meetings organised jointly with other Commissions, will be found elsewhere in this Volume or in Highlights of Astronomy (Volume 8):

1. - High Angular Resolution Imaging from the Ground (JCM 3)

2. - Stellar Photometry with Array Detectors (JCM 6)

3. - Problems of IR Extinction and Standardization (with Commission 25)

4. - Future Space Programs (with Commission 44)

5. - Gamma-ray, X-ray, Extreme and Far UV, IR and Radio Astronomy from Space (with Commissions 40 and 44)