It was described as "evil" and "vicious" by early observers.
However early observers simply recorded the fact without investigating the relationships between the two organisms.
Emmons was also an early observer of artificial satellites.
It is not known how "ridley" arose, but it may have been the name of an early observer.
It was a fair achievement in a town which an earlier observer described as '44 hovels'.
To some early observers the design appeared to be printed or painted on because the weave, about 225 threads to the inch, is so fine.
The early observers were only able to calculate the size of Ceres to within about an order of magnitude.
Other early observers took this scarring as an indigenous cultural practice.
According to one early observer, "the sighting of two or three deer was considered significant in the old days."
The second flagellum is difficult to see with bright field microscopy, and was entirely overlooked by early observers.