"Natural product" Quotes from Famous Books
 ... carbon, is by far the most common, and is formed by the natural or artificial disintegration of organic matters by heat; we thus have formed wood charcoal, animal charcoal, lamp-black, and coke, all produced by artificial means, and we may also class with these coal, which is a natural product, and which contains from 85 to 95 per cent. ...
— Scientific American Supplement, No. 288 - July 9, 1881 • Various |
