IAU Transactions are published as a volume corresponding to each General Assembly.
Volume A is produced prior to the Assembly and contains Reports on Astronomy, prepared by each Commission President. The intention is to summarize the astronomical results that have affected the work of the Commission since the production of the previous Reports up to a time which is about one year prior to the General Assembly.
Volume B is produced after the Assembly and contains accounts of Commission Meetings which were held, together with other material. The reports included in the present volume range from outline summaries to lengthy compilations and references.

4 Ephemerides/Ephémérides.- 5 Documentation & Astronomical Data/ Documentation & Données astronomiques.- 6 Astronomical Telegrams/Télégrammes astronomiques.- 7 Celestial Mechanics/Mécanique céleste.- 8 Positional Astronomy/Astronomie de Position.- 9 Instruments & Techniques/Instruments & Techniques.- 10 Solar Activity/Activité solaire.- 12 Radiation & Structure of the Solar Atmosphere/ Radiation & Structure de l'Atmosphère solaire.- 14 Atomic & Molecular Data/Données atomiques & moléculaires.- 15 Physical Study of Comets, Minor Planets & Meteorites/ Etude physique des Comètes, des petites Planètes & des Météorites.- 16 Physical Study of Planets & Satellites/ Etude physique des Planètes & Satellites.- 19 Rotation of the Earth/s/b Rotation de la Terre.- 20 Positions & Motions of Minor Planets, Comets & Satellites/ Positions & Movements des petites Planètes, des Comètes & des Météorites.- 21 Light of the Night Sky/Lumière du Ciel nocturne.- 22 Meteors & Interplanetary Dust/Météores & Poussière interplanétaire.- 24 Photographic Astrometry/Astrométrie photographique.- 25 Stellar Photometry & Polarimetry/ Photométrie & Polarimétrie stellaires.- 26 Double & Multiple Stars/Etoiles doubles & multiples.- 27 Variable Stars/Etoiles variables.- 28 Galaxies.- 29 Stellar Spectra/Spectres stellaires.- 30 Radical Velocities/Vitesses radiales.- 31 Time/L'Heure.- 33 Structure & Dynamics of the Galactic System/ Structure & Dynamique du Système galactique.- 34 Interstellar Matter/Matière interstellaire.- 35 Stellar Constitution/Constitution des Etoiles.- 36 Theory of Stellar Atmospheres/Théorie des Atmosphères stellaires.- 37 Star Clusters & Associations/Amas stellaires & Associations.- 38 Exchange of Astronomers/Echange des Astronomes.- 40 RadioAstronomy/Radioastronomie.- 41 History of Astronomy/Histoire de l'Astronomie.- 42 Close Binary Stars/Etoiles binaires serrées.- 44 Astronomy from Space/L'Astronomie à partir de l'Espace.- 45 Stellar Classification/Classiffication stellaire.- 46 Teaching of Astronomy/Enseignement de l'Astronomie.- 47 Cosmology/Cosmologie.- 48 High Energy Astrophysics/Astrophysique des hautes Energies.- 49 The Interplanetary Plasma & the Heliosphere/ s/b Plasma interplanétaire & Héliosphère.- 50 Protection of Existing & Potential Observatory Sites/ Protection des Sites d'Observatoires existants & potentiels.- 51 Bioastronomy: Search for Extraterrestrial Life/ Bioastronomie: Recherche de la Vie Extraterrestre.