Section III: The Work of the Colorado Project

Chapter 4: Indirect Physical Evidence

Chapter 5: Optical and Radar Analysis of Field Cases

Chapter 6: Visual Observations Made by U.S. Astronauts

Section IV: Case Studies

Chapter 1: Case Studies Preceding Term of Project

Chapter 2: Case Studies During Term of Project

Chapter 3: Photographic Case Studies

Section VI: The Scientific Context

Chapter 4: Optical Mirage

Chapter 5: Radar and the Observation of UFOs

Chapter 6: Sonic Boom

Chapter 9: Instrumentation for UFO Searches

Section VII: APPENDICES

Appendix L: Weather Data, D.C. & Norfolk, July 52

Appendix Q: Weather Conditions, Dallas/Mineral Wells, Sep 57