Wilbert Smith Archives Files Box 1136 11 1136-11-p029

Document Text (OCR)

n24= Variation of Sightings with Time It appears that the UFO phenomenology has been with us from the earliest times. In the last twenty-five years, however, there seems to be a drastic increase in the number of sightings. It is practicaily impossible to estimate the number of world-wide sightings because of the lack of suitable data collection means. In the U.S., the principal depositories are currently the Air Force, NICAP, and APRO. It is estimated that currently these sources together...