There is much more to the group of reports to which I referred than beams of light that might reasonably have been those of persons making crop circles as night. Just to cite a couple of examples: The July 1934 case might appear superficially like a whirlwind, but left the flattened crop hot to the touch. I am not aware of a whirlwind that can do that.
An April, 1991 incident involved the daylight sighting of a craft-like object in the air that projected a conical beam of light down into the crop, which flattened it very quickly. If even a few cases have features that do not support the man-made explanation, it must be granted that many more, where the creation of the circle was unobserved, could have such features, too.
Edited by bison, 02 February 2013 - 10:54 PM.