H., 247
Hare, Robert, 237, 245, 307
Harries, 149
Helium, 236
Hesse, 70, 72, 90
Hofmann, 72, 80
Huxley, 10
Hyatt, 128, 129, 303
Hydrogen, 253-255
Hydrogenation of oils, 202-205, 306
Indigo, 76, 79
Iron, 236, 253, 262-270, 308
Isoprene, 136, 146, 149, 150, 154
Kelp products, 53, 142
Kekule's dream, 66, 301
Lard substitutes, 209
Lavoisier, 6
Leather substitutes, 124
Leucite, 53
Liebig, 38
Linseed oil, 202, 205, 270
Magnesium, 283
Maize products, 181-196, 305
Manganese, 278
Margarin, 207-212, 307
Mauve, discovery of, 74
Mendeleef, 285, 291
Mercerized cotton, 115
Moissan, 259
Molybdenum, 283, 308
Munition manufacture in U.S., 33, 224, 299, 307
Mushet, 279
Musk, synthetic, 96, 97, 106
Mustard gas, 224, 227-229
Naphthalene, 4, 142, 154
Nature and art, 8-13, 118, 122, 133
Nitrates, Chilean, 22, 24, 30, 36
Nitric acid derivatives, 20
Nitrocellulose, 17, 117
Nitrogen, in explosives, 14, 16, 117, 299
fixation, 24, 25, 29, 299
Nitro-glycerin, 18, 117, 214
Nobel, 18, 117
Oils, 196-217, 306
Oleomargarin, 207-212, 307
Orange blossoms, 99, 100
Osmium, 28
Ostwald, 29, 55
Oxy-hydrogen blowpipe, 246
Paper, 111, 132
Parker process, 273
Peanut oil, 206, 211, 214, 306
Perfumery, Art of, 103-108
Perfumes, synthetic, 93-109, 302
Perkin, W.
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