This statement has been submitted by James E. McDonald, Senior Physicist, Institute of Atmospheric Physics, and professor, Department of Meteorology, The University of Arizona, Tucson, Arizona, to the House Committee on Science and Astronautics at July 29, 1968, Symposium on Unidentified Flying Objects, Rayburn Bldg., Washington, D.C.
I have created a table of content underneath, which is not part of the original scientific publication. The 56 pages publication is some 250Kb and I have broken it in several files for acceptable web access speed.
Please go to the Science section of this site for more scientific papers by James E. McDonald and other scientists, and comments and information regarding scientists' work and position about the UFO phenomenon.
Introduction (This page)
Scope and background of present comments
The unconventional nature of the UFO problem
Some alternative hypothesis
Some remarks on interviewing experience and types of UFO cases encountered
Why don't pilots see UFOs?
Why are UFOs only seen by lone individuals, with no multiple-witness sightings?
Why aren't UFOs ever seen in cities? Why just in out-of-the-way places?
Why don't astronomers ever see UFOs?
Meteorologists and weather observers look at the skies frequently. Why don't they see UFOs?
Don't weather balloons and research balloons account for many UFOs?
Why aren't UFOs ever tracked by radar?
Why aren't there numerous photos of UFOs if they really exist?
If UFOs are real, shouldn't they produce some real physical effects?
Is there any evidence of hazard or hostility in the UFO phenomena?
Misapplications of atmospheric physics in past UFO explanations
Summary and recommendation
References
Introduction (This page)
Scope and background of present comments
The unconventional nature of the UFO problem
Some alternative hypothesis
Some remarks on interviewing experience and types of UFO cases encountered
Why don't pilots see UFOs?
Why are UFOs only seen by lone individuals, with no multiple-witness sightings?
Why aren't UFOs ever seen in cities? Why just in out-of-the-way places?
Why don't astronomers ever see UFOs?
Meteorologists and weather observers look at the skies frequently. Why don't they see UFOs?
Don't weather balloons and research balloons account for many UFOs?
Why aren't UFOs ever tracked by radar?
Why aren't there numerous photos of UFOs if they really exist?
If UFOs are real, shouldn't they produce some real physical effects?
Is there any evidence of hazard or hostility in the UFO phenomena?
Misapplications of atmospheric physics in past UFO explanations
Summary and recommendation
References