Nux vomica, 577

  Nyctanthes arbortristes, 494

  Nymphaea lotus, starch obtained from, 352

  Oats, proportion of oil in, 564
    production of in the United Kingdom, 257
    imported, 218

  Oatmeal, imported 218

  Oats and beans, produce of in England, 248

  Oak bark, tannin in, 492

  Ocas, a tuberous plant, 374

  Ocoes or taniers, 331

  Ocymum tuberosum, 356, 367

  Ohio tobacco, statistics of, 598, 600

  Oil of aniseed, 438

  Oil, proportions of in various crops, 264
    obtained from the Cacao seeds 11, 12

  Oil of cubebs, 639
    of camphor, 634
    of cassia, 396

  Oil of cloves, 398
    of mace, 402
    of cinnamon, 389, 390
    spikenard, 565
    of Ben, 523
    cake, 513, 531
    mills of India, 535
    cakes of the castor seed, 545
    cake from coco-nut, 552, 563
    coco-nut, 551, 556, 561, 562
    from maize, 564
    of sandal wood, 565
    cake imported, 564
    cake, American, 565

  Oilcake as a manure, 50
    used in China, 313

  Oil palm, 525

  Oils, burning properties of various, 508

  Oldenlandia umbellata, 449

  Oleaginous plants, 509

  Olea fragrans, 528
    Europea, 527

  Olives, mode of preserving the fruit, 530

  Olive oil, prices of, 531
    509, 527
    sources of supply, 563

  Omen-e-chah, the Indian name for a wild bean, 372

  Onions, planted with arrow root, 347

  Ophelia chitrata, 641

  Opium, history and trade of, 580

  Orceine, 488

  Orchilla weed, 452
    weed, imports of, 486

  Orchids furnishing salep, 354
    an edible species of, 375
    roots of some used as food, 377

  Orituco cacao, superior quality of, 14

  Oryza, varieties of, 284

  Orlong, a land measure in the East, equal to 1-1/3 acre, 297

  O’Shaughnessy’s analysis of Ceylon moss, 380
    on opium, 584

  Oswego starch factory, 343

  Otto of khuskhus, 573

  Otaheite cane, 153

  Oude, production of indigo in, 464, 475

  Oxalic acid, used for vinegar, 312

  Oxley (Dr.) on nutmeg culture, 402

  Paddy, a name for rice in the husk, 297

  Patchouly, 537

  Pannam kilingoes, 376

  Parchment coffee, 60

  Pao Crava, one of the spice barks, 384

  Pachyrrhizus angulatus, 377

  Palm oil, imports of, 527
    sources of supply, 563

  Palm oil, 509, 524
    wine, 314
    sugar, 136

  Palma Christi, 542

  Palmetto palm, 495