598 
INDEX 
All numbers refer to pages, heavy type indicating illustrations. 
showy ladies’ slipper, 220; yel- 
low ladies’ slipper, 220; vanilla, 
149 
Orchid Order, 391, 397, 424, 425 
Orchids, 218, 219, 311 
Order, 8, 428 
Orderly progress, 469 
Orders, Linnean, 309; natural, 
310, 311 
Ordinary English in describing, 
312 
Organic, compounds, 562; evolu- 
tion, 431, 572; materials, 570; 
realm, 562, 569; substances, 321 
Organisms, 321, 562; as self-build- 
ing boats, 569 
Organs, 321; adhesion of, 365; 
analogous, 321 
Oriental food-plants, 124 
Origanum Majorana, Sweet Mar- 
jorum 
Origin, of adaptations, 442; of life, 
566; of life in the sea, 491; of 
species, 441 
Origins, the problem of, 428 
Ornamental, flowers, 303; woods, 
268, 269 
Ornaments, 268, 276 
Orpine Family, 399 
Orthotropous ovule, 372 
Oryza sativa, Rice 
Osiers, 241 
Osmunda, 537 
Osmundacee, Royal-fern Family 
Ovaries, inferior, 350, 365, 380; 
half-inferior, 350; superior, 350 
Ovary, 12, 14, 319, 345, 556 
Overproduction of offspring, 447 
Overshoes, 283 
Overstimulation, 159, 160 
Ovulary cavity, 345; divided by 
partition, 363 
Ovule, 12, 14, 319, 325, 352, 550, 
551; parts of, 346 
Ovules, anatropous, 346, 355; 
campylotropous, 363; ortho- 
tropous, 372 
Ozxalidacee, Oxalis Family 
Oxalis Family, 399 
Oxeye, 380, 435 
Oxidized hydrocarbons, 285, 287 
Oxygen, 570; in grains, 31 
Packing, 223, 235, 279, 280 
Packing material, 239 
Peonia officinalis, Peony 
Pails, 243; paper, 224 
Painting, 222, 296 
Paints, 295 
Palaquium Gutta, Taban-tree 
Palmacee, Palm Family 
Palme, Palms 
Palmales, Palm Order 
Palm, oils, 296, 297, 389, 397, 422, 
423; sago, 388; seeds, 282; stem, 
255 
Palm Family, 388, 397, 422, 423: 
coconut, 46, 47; date, 100, 101; 
rattans, 237, 238; sago palms, 
109, 110; vegetable ivory, 275, 
276 
Palm Order, 389, 397, 422, 423 
Palmatic acid, 296 
Palmatin, 296, 297 
Palmate nervation, 340, 352 
Palmately compound, 340; di- 
vided, 340; ribbed, 337 
Palm-leaf fans, 388 
Palms, 311, 389 
Paneling, 263 
Paniculate inflorescence, 345, 352 
Panspermia, 567 
Papaveracee, Poppy Family 
Papaverales, Poppy Order 
Papaver somniferum, Opium Poppy . 
Paper, 223, 224, 228, 230, 235, 241; 
boxes, 224; canoes, 224; car- 
wheels, 224; making of, 222; 
manila, 232; napkins, 224; pails, 
224 
Papier-maché, 224 
Papilionaceous corolla, 366 
Pappus, 386 
Parallel-veined leaves, 387 
Paraphyses, 487, 503 
Parasite, 303, 494 
Parasitic fungi, 504 
Parchment, vegetable, 230 
Parenchyma, 530 
Parietal placenta, 362 
Parmeliacee, Shield-lichen Family 
Parsley, 137, 140, 370, 410, 411 
Parsley Family, 370, 400, 412, 413: 
anise, 142; asafetida plant, 175; 
caraway, 142; carrot, 55, 66, 57; 
