Note 11 — I.
Reading edition
"Now that we can produce artificially, and from waste and even noisome materials, the ethereal liquids to which the fragrance of the pear, the pineapple, and the melon are due, and can manufacture spirits of wine from coal-gas and oil of vitriol, we can scarcely be over-sanguine as to what we shall yet effect as competitors with living organisms in the production of certain compounds."—George Wilson's Life of Forbes, p. 129.