Why was the Oliver Nicholson quote removed? 

There used to be a small quote from Oliver Nicholson in the Fifth Element section. Why was it removed? It was from "Tesla's self-sustaining electrical generator", The historical ether. Proceedings of the Tesla Centenial Symposium, 1984. 

It read as follows:
Oliver Nicholson points out that, in contrast to the better known luminiferous aether of the 19th century, the older concept of the classical aether had three properties. Among these characteristics, the classical aether had a non-material property, was "less than the vehicle of visible light", and was responsible for "generating metals" along with fostering the development of all bodies.

The original section can still be seen on other sites linked to Wikipedia, such as answers.com