"Magnetic iron-ore" Quotes from Famous Books
 ... outcome of the problem which, in 1900, he undertook to solve, it will be interesting to review his mental attitude at that period. It has already been noted at the end of a previous chapter that on closing the magnetic iron-ore concentrating plant at Edison, New Jersey, he resolved to work on a new type of storage battery. It was about this time that, in the course of a conversation with Mr. R. H. Beach, then of the street-railway department of the General Electric Company, he said: "Beach, I don't ...
— Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin
... the enormous thickness of over 20,000 feet, and is composed mainly of great beds of gneiss, altered sandstones (quartzites), mica-schist, hornblende-schist, magnetic iron-ore, and haematite, together with masses of limestone. The limestones are especially interesting, and have an extraordinary development—three principal beds being known, of which one is not less than 1500 feet thick; ...
— The Ancient Life History of the Earth • Henry Alleyne Nicholson |
