GENERAL INDEX. 



597 



Nutrition of Parasitps, 183 

 Nutrition of Protoplasm, 180 

 Nutrition of Sapropliytes, 183 

 Nux Vomica, 503 

 Nyctaginacese, 497 

 Nympbsea, 131, SHS 

 Nympbseacea', 128, 435, 557 

 Nyssa, 519 



Oak, 64, 147, 173, 284, 431, 436, 



479 

 Oak Family, 477 

 Oat, 56, 58, 59, 166, 316, 318, 333, 



333, 455 

 Oblong Leave?", 146 

 Ocbnaceae, 540 

 Ocbroma, 547 

 Octandrous, 433 

 (Edogoniaceae, 269, 371, 339 

 CEdogoniese, 346, 369, 336, 837 

 CEdogonium, 10, 33, 43, 51, 350 

 (Enotbera, 11, 98, 418, 533 

 Oidiam, 384 

 Oil, 63, 129 

 Oil-cake, 544 

 Oil of Caraway, 63 

 Oil of Juniper, 411 

 Oil of Lavender, 497 

 Oil of Lemtms, 63 

 Oil of Peppermint, 497 

 Oil of Rliodium, 503 

 Oil of Tbyme, 63 

 Oil of Turpentine, 63 

 Oily Matter, 179, 181 

 Okra, 547 

 Olacales, 539 

 Olacinese, 540 

 Oldfieldia, 485 

 Olea, 103, 505 

 Oleaceae, 504, 565 

 Oleander, 94, 504 

 Olearia. 516 

 Oleaster, 492 

 Olibanum, 540 

 Oligomeris, 553 

 Olive, 505 

 Olive Family, 504 

 Olive Oil, 62, 505 

 Omphalaria, 306, 309 

 Onagracese, 61, 533 

 Onion, 61, 63, 77, 98, 199, 823, 458 

 Onobrycbus, 532 

 Onygenese, 338 

 OnygenacesB, 339 



Oogonium, 343, 267 

 Oospore, 46, 56, 343, 368 

 Oosporeie, 305, 343, 369. 335, 337, 



339, 568, 569, 570 

 Oospbere, 45, 243, 367 

 Opegrapba, 310 

 Opegrapbei, 310 

 Open Bundle, 121, 443 

 Opening of Flnwers, 199 

 Operculum, 355, 360 

 OiibioglossaceiB, 371, 378, 379, 384, 



389 

 Ophioglossum, 80, 380, 381 

 Oplirydeje, 470 

 Opium, 78, 556 

 Opium Poppy, 183, 556 

 Opfiosite Leaves, 149 

 Optimum Light, 191 

 Optimum Temperature, 184 

 Opuntia, 150, 520 

 Orange, 130, 133, 541 

 Orang Lily, 460 

 Orchard Grass, 455 

 Orchidales, 468 

 Orcbidaceae, 469 

 Orchids, 137, 483, 469 

 Orchil, 308 

 Orchis, 470 

 Ordeal Poison, 504 

 Organic Acids, 180 

 Organic Compounds as Food, 176, 



178 

 Organogeny of the Flower, 436 

 Orobanchaceae, 500 

 Orobanche, 56 

 Ornithiigalum, 461 

 Ortbosticliies, 149 

 Oryza, 455 

 Osage Orange, 490 

 Oscillatoria, 37, 67, 217 

 Oscillatoriaceae, 317, 838 

 Oscillatoriae, 53, 55 

 Osmunda, 81, 377 

 OsmundacesB, 377 

 Ostrya, 78, 477 

 Ourari, 503 

 Ovary, 391, 417, 418 

 Ovules, 186, 137, 390, 403, 419 

 Oxalic Acid, 64, 180, 183 

 Oxalis, 197, 435, 543 

 Ox Eye Daisy, 514 

 Oxidation in Metastasis, 179 

 Oxidized Essences, 63 

 Oxygen, 175 



