Through the engine-room ventilators a long jingle of the telegraph was heard; and directly the Sybarite's pulses began to beat in quicker tempo, while darker volutes of smoke rolled in dense volume from her funnel and streamed away astern, resting low and preserving their individuality as long as visible, like a streak of oxidization on a field of frosted silver.
"Alias The Lone Wolf"
Louis Joseph Vance
One writer some time since suggested, if he did not affirm, that the colour was due to the presence of aniline, others have contented themselves with the affirmation that it was a rapid oxidization and chemical change, consequent upon exposure of the surfaces to the air.
"Fungi: Their Nature and Uses"
Mordecai Cubitt Cooke
Various expedients to prevent oxidization were tried, such, for instance, as coating the carbon with powdered glass, which in melting would protect the carbon from the atmosphere, but without successful results.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin