Feature

  1. Advice Useful in Training

    By Science News

  2. Two New Rifle Sights Intended to Improve Aim

    By Science News

  3. New Machines and Gadgets

    By Science News

  4. Adapter Permits Use of Low-Price Ammunition

    By Science News

  5. First Glances at New Books

    By Science News

  6. Progress Hinges on Food

    By Science News

  7. Smoke Generator Developed for Camouflage Purposes

    By Science News

  8. New Machines and Gadgets

    By Science News

  9. Glances at New Books

    By Science News

  10. Books of the Week

    By Science News

  11. Front Matter

    By Science News

  12. Physics Won’t Dominate

    By Science News