1. A survey of current problems in planetary cosmogony

   • I. P. Williams

   OriginalPaper Pages: 3 - 13

2. Pre-stellar interstellar dust

   • J. M. Greenberg

   OriginalPaper Pages: 15 - 48

3. Grain motions in the solar nebula

   • Steven H. Margolis

   OriginalPaper Pages: 49 - 59

4. A tidal theory for the origin of the solar nebula

   • Michael Kobrick
   • William M. Kaula

   OriginalPaper Pages: 61 - 101