316 



INDEX. 



MimuluB, irritable stigma of, 195 



Mixture for luting, 26 n. 



Molisch, on diphenylamin reaction 

 for nitrates, 59 u. 



Moll, on drooping of leaves in 

 frost, 163; on extrusion of water 

 under pressure, 70 ; on injection 

 of leaves by frost, 97 



Morris, see Brown 



Movements, autonomous, 209 ; of 

 Averrhoa, 213 ; of Deomodium, 

 214; of TrifoUum, 212; peri- 

 odic, 209-21i 



Musa used in experiments on glu- 

 cosides, 257 



Kageli, on anisotropism, 110; on 

 culture of fungi, 63 



Nagamatz, on assimilation of laud 

 plants under water, 22 n. 



Narcissus, flower of, diageotropio, 

 178 ; leaf of for elasticity experi- 

 ment, 125 ; stomata of, 98 



Nasturtium ofScinale, used in De 

 Saussure's exp., 66 



Negative pressure, 79, 80 



Nesslerising, precautions necessary 

 in, 238; see also Froteids, esti- 

 mation of 



Nitrate, diphenylamin reaction for, 

 59 



Nitrates, 235, 242, 297; estima- 

 tion of, 240, 241 ; in connection 

 with calcium oxalate, 59 



Nitrites, see Nitrates 



Nitrogenous plastic substances, 

 preparation of extracts for, 226 



Nitrometer, use of, 240, 261 



Nobbe's experiments on swelling of 

 peas, 105, 106 



Noll, on growth of pnlvinus in 

 grass-haulms, 152 



Non-nitrogenous plastic substances, 

 preparation of extracts for, 224 



Nutation of epiootyls, 183 ; revolv- 

 ing, 209 



Nyctitropic movements of Mimosa, 

 record of, 206; of Trifolium, 

 203; of Oxalis, Marsilea, Meli- 

 lotus. Cassia, Nicotiana, Brassica, 

 Baphanus, 205 



Oil (olive-), action of on chloro- 

 phyll solution, 43 



Oils, 243; extraction of, 224; sa- 

 ponification of, 244; estimation 

 of, 245, 246 ; experiments on, 

 247, 295, 298; (see also Gly- 

 cerin) 



Oily seeds, germination of, 8 



Oleander used in assimilation ex- 

 periments, 38 



Oliver, on stigma of Mimulus, 196 



Onion, stomata of, 98 



Onobrychis, used in experiments 

 on nitrogenous metabolism, 241, 

 242 



Osmotic strength of cell-sap in 

 terms of KNOj, 114 



Oxalic acid, 277, 279, 283 



Oxalis, leaf of, change of colour on 

 heating, 10; as indicator of 

 poisonous effect of phenol, 15 ; 

 injected leaf, affected by heat 

 more easily, 10; movement of 

 ohloroplasts in leaves of, 198; 

 sensitive to touch, 189; used 

 for Briicke's experiment, 190 



Oxygen, evolution of by water 

 plants, 30; affected by various 

 conditions, 32 ; method of col- 

 lecting, 33 



Palmitin, 245 



Paraheliotropism, 206 



Passiflora, tendrils of, 184 



Peas, imbibition of, 102 ; swelling 

 of testa of, 105 ; warmth pro- 

 duced by germinating, 7 



Pelargonium, nitrates in, 60 



Penicillium, culture of, 61, 62 



Pentoses, see Sugars 



Peptones, see Proteids 



Petroleum ether, use of in extrac- 

 tion, 224 



Pfeffer on absorption of methylene 

 blue by Elodea, 113 ; on chemo- 

 taxis, 199; on effect of chloro- 

 form on Mimosa, 195; on me- 

 thod of estimating GOj assimi- 

 lated, 35; on contact-stimula- 

 tion of Drosera, 192 ; on evolu- 

 tion of gas by water plants, 31 ; 



