Issue 4 (October 1931)

  1. Journal of the Society of Motion Picture Engineers — Cover InformationOpen access
  2. Journal of the Society of Motion Picture Engineers — Table of Contents InformationOpen access
  3. Journal of the Society of Motion Picture Engineers — Editorial Board InformationOpen access
  4. Photographic Sensitometry, Part I Original Research
  5. A Motion Picture Laboratory Sensitometer Original Research
  6. Eastman Supersensitive Motion Picture Negative Film Original Research
  7. The Electrolytic Regeneration of Fixing Baths Original Research
  8. Automatic Silver Recovery Control Original Research
  9. Air Conditioning in Film Laboratories Original Research
  10. A New 35-mm. Portable Projector Original Research
  11. Pioneer Experiments of Eugene Lauste in Recording Sound Original Research
  12. Report of the Studio Lighting Committee Original Research
  13. Radios past and Future InformationOpen access
  14. Abstracts InformationOpen access
  15. Abstracts of Recent U.S. Patents InformationOpen access
  16. Officers InformationOpen access
  17. Committees InformationOpen access
  18. Contributors to This Issue InformationOpen access
  19. Society Announcements InformationOpen access
  20. Papers Program, Fall 1931 Convention InformationOpen access