-12-
III. Recommended Material for Questionnaire
1. Name and address of person who observed phenomenon
2. Age, education and employment of person
(Specify especially training, if any, in scientific fields such as physics, engineering, etc.)
3. Name, address and educational qualifications of person who prepared questionnaire
4. Date and time of occurrence
5. Geographic location
6. Elevation
7. Character of observation point and surroundings
(State whether inside or outside; kind of structure, if any; neighboring structures or ground objects; and terrain)
8. Illumination available (natural and artificial)
9. Weather conditions (as thunderstorm, rain, overcast)
10. State whether genuine streak lightning was observed (a) before, (b) after, the "ball lightning"; and indicate time interval between phenomena
11. Indicate direction and apparent distance of such streak lightning; also objects believed to have been struck by it
12. State whether glow or brush discharges were observed (a) before, (b) after, the "ball lightning"; and indicate time interval between phenomena
13. Indicate locations at which glow or brush discharges were observed, and objects on which they appeared
14. Indicate brightness of discharge at points of occurrence referred to in (11) and (13)
15. Shape of ball lightning observed
16. Transparency of "ball" and general appearance of its exterior and periphery
17. Changes in its form