INDEX 
Ocnothera lamarckiana, 657, 658 
Oenothera lata, 658 
Offsets, 189 
Oidium, 376 
Oil, benne, 602 
bitter almond, 97 
cassia, 97 
cedarwood, 466 
chaulmoogra, 565 
cocoanut, 487 
enzyme, 103 
linseed, 542 
mustard, 97 
palm, 487 
rose geranium, 542 
Siberian fir, 466 
tung, 551 
turpentine, 97 
Oils, fixed, 95 
nitrogenated, 97 
oxygenated, 97 
sulphurated, 97 
terpene, 97 
volatile, 96 
Olea, 583 
Olea europea, 583 
Oleacea, 583 
Oleander, latex of, 101 
Oleoresins, 97 
defined, 98 
Oleum abietis, 466 
amygdale amarz, 535 
amygdala expressum, 535 
anisi, 516, 577 
aurantii, 546 
aurantii amari, 546 
aurantii florum, 546 
bergamotta, 546 
betula, 505 
betula empyreumaticum rectifi- 
catum, 505 
cajuputi, 574 
cardamomi, 492 
cari, 577 
caryophylli, 574 
chaulmoogre, 565 
chenopodii, 514 
cinnamomi, 524 
citronellz, 485 
773 
Oleum coriandri, 577 
erigerontis, 615 
eucalypti, 574 
foeniculi, 577 
gossypii seminis, 562 | 
juniperi, 466 ' 
lavandula, 595 Pee. 
limonis, 546 
lini, 543 
maydis, 485 
menthz piperita, 594 
menthe viridis, 594 
myrcie, 574 
myristice, 518 
olive, 583 
picis rectificatum, 465 
pimentz, 574 
pini pumilionis, 466 
ricini, 551 
rose, 535 
rosmarini, 595 
santali, 510 
santali australiensis, 510 
sassafras, 524 
sesami, 602 
sinapis volatile, 530 
terebinthine, 465 
theobromatis, 559 
_ thymi, 595 
tiglii, 551 
Olibanum, 548 
Olive, 583 
Olive Family, 583 
Onagracee, 569 
Onion, 188, 191 
epidermis of bulb scale, 18 
Onoclea sensibilis, 433 
Oégonia, 346, 348 
Oégonium, 348 
Oémycetales, 376 
Oéspore, 46, 293, 341, 476 
Operculina Turpethum, 591 
Operculum, 429 
Ophioglossum, 434 
Opium, 86, 87, 101, 527 
Opuntia, 667, 568 
Opuntiales, 567 
Orange, 545 
flower, 277 
