Victoria blue, 106 Victoria yellow, 137 Vinasse, 99 Vincent, methyl chloride, 100 Violaniline, 121 Wasteful use of coal, 32, 203 Water, composition of, 25 Water gas, 203 Watson, Bishop, coke-oven tar, 50 Watson, Bishop, distils coal, 37 Wealden iron industry, 17 Whitaker, W., coal in S.-E. England, 60 Winsor, promotes introduction of gas, 41 Witt, azines, 109 Witt, chrysoidine, 116 Witt, naphthol orange, 150 Wood vinegar, 64 Woody fibre, 26 Woulfe, picric acid, 136 Xylenes from tar, 81 Xylidine scarlet, 153 Young, James, burning-oil, 51 Ziegler, tartrazine, 184 Zinin, benzidam, 75 THE END. _Richard Clay & Sons, Limited, London & Bungay._ Footnotes: [1] "An experiment concerning the Spirit of Coals," _Phil. Trans._ (abridged), vol. viii. p. 295. [2] _Report of the Coal Commissioners_ (1866-71), vol. i. [3] In a paper read before the Royal Statistical Society by Mr. Price-Williams in 1889, this author points out that, owing to the introduction of the Bessemer process and other economical improvements, the amount of coal used in the iron and steel manufacture had fallen in 1867 to about sixteen and a half per cent. of the total quantity raised. [4] This remark does not apply to Great Britain; our Excise regulations have practically killed those branches of manufacture requiring the use of pure wood-spirit. [5] Since the above was written, new synthetical processes for the production of indigo have been made known in Germany by Karl Heumann. Of the commercial aspect of these discoveries it is of course impossible at present to form an opinion. [6] With phthalic anhydride gives fluorescein and dyes of eosin and rhodamin series. [7] Diazotised and combined with naphthylamines, naphthols, or their sulpho-acids give azo-dyes. [8] With naphthols give oxazines and indophenol. [9] Diazotised and combined with phenols, amines, or sulpho-acids to form azo-dyes. [10] Combined with diazotised amido-compounds to form azo-dyes. [11] Since the above was written the continuation of Koch's researches upon the tubercle bacillus has culminated in the discovery of his now world-renowned lymph for the inoculation of patients suffering from tubercular disease. [12] In one large factory in Yorkshire there is a set of stills kept constantly at work making pure aniline at the rate of two hundred tons per month. The monthly consumption of coal in this factory is two thousand tons, equal to twenty-four thousand tons per annum. PUBLICATIONS OF THE Society for Promoting Christian Knowledge. THE ROMANCE OF SCIENCE. A series of books which will show that science has for the masses as great interest and more edification than the romances of the day. _Small Post 8vo, Cloth boards._ The Birth and Growth of Worlds. A Lecture by Professor A. H. GREEN, M.A., F.R.S. 1_s._