INDEX 



353 



Nobbe, on buckwheat without chlorine, 86; N. and 

 Hiltner, on nitrogen fixation, 77; N., Schmid, 

 Hiltner and Hotter, on nitrogen fixation, 77; N. 

 and Siegert, on water-cultures, 274 



Noll, on root bending and laterals, 303 



Nordhausen, on movement of water in plants, 143; 

 on lateral roots, 294 



Normal respiration, 204, 206 



Norris, see Harden and N. 



Nucleins, 85, 165, 183. 195. 232, 233 



Nucleoli, 301 



Nucleo-proteins, 165, 176, 178, 183 



Nucleus, 157 



Nutation, of tendrils, 315; and poison gases, 264 



Nutrient media, 48, 49, 59-62, 205, 302; salts and 

 reproduction, 334 



Nutrition, of fungi, 79, 173; compared to poisoning, 

 230 



Nutting, Applied optics, 22 







Oak, leaf-mould from leaves of, 67 



Oat (see also Avena), 73. 74. 88, 94. 96, 137. 162, 

 164, 175 



Ohno, on gas excretion, in Nelumbium, 130 



Oil, 30, 153, 169, 334", to exclude oxgen, etc., 135. 

 261; linseed, xxxii; mustard, 169 



Omelianski, see Omelianskii. 



Omelianskii, on sulphur bacteria, 50; on nitrifying 

 organisms of soil, 50, 69; on nitrifying organ- 

 isms, 69; on bacteriological-chemical methods, 

 213. (See also Vinogradskii and 0.) 



Omeliansky, see Omelianskii. 



Onion (see also Allium), 183 



Oogonium, 334 



Oppenheimer, Fermente, 166, 204 



Optimum temperature, 255, 256 



Opuntia, 321 



Organic acids, 191; compounds, xxxi, xxxii; forma- 

 tion of, and in soil, 67; nutrition of green plants 

 by, 37-40; assimilation of energy from, by 

 plants without chlorophyll, 43-48; transfer of, 



I5I-I53 



Orlov, 92 



Ortho-dioxy-benzene, 226 



Osborne, on plant proteins, 158, 160, 161 



Osmometers, in, 112, 245 



Osmosis, 104, 109 



Osmotic membranes, 104, no, 113, 114, 119, 122; 



pressure, no, ill, 113; 117. 118, 119, 123, 188; 



of cells, 114, 123; values, 116, 117; of bog water, 



100; of cell sap, 123 

 Ostwald, Wilh., General chemistry, 115; Theoret- 



ische Chemie, 223; on enzymes, xxviii, xxx 

 Ostwald, Wolfg., on colloids, 112 

 Otocysts, 258 



Otto and Kooper, on poisons in soil, 102 

 Overton, E., on absorption of dyes, 120; on lipoids 



and narcosis, 186 

 Overton, J. B., on ascent of sap and transpiration, 



145, 150 

 Oxalis, 251, 321 



Oxidases, xxxiii, 169-171, 226, 228 

 Oxidation (see also combustion and respiration), 



xxxii, xxxiii, 44, 49, 104, 192, 201, 202, 204, 



211, 222, 223, 227, 233 



Oxidizers, 210 

 23 



Oxidizing enzymes, 169 



Oxygen, xxxii, 1-5, 17, 19. 50, 67, 101-105, 107. 153. 



171, 175. 176, 185, 188, 193, 194. 201, 202, 206, 



207, 2ii, 212, 215, 217, 219, 221-223, 256, 260; 



influence of oxygen content of air on growth, 



etc., 260-262; oxygen in soil, 102 

 Oxygenases, 144, 171 

 Oxymethylene, 30, 31 

 Ozone, 59 



Palisade parenchyma, 289, 



Palladin, on etiolated leaves and on chlorophyll 

 formation and solution concentration, 17; on 

 plant proteins, 161 ; on respiration enzymes, 

 166; on reductase, 171, 210; on enzyme action 

 in killed plants, 172; an anaerobic protein de- 

 composition, 175; on respiration and nitrogen- 

 ous substances, 183, 232; on light, protein for- 

 mation and respiration, 184; on carbohydrates 

 from protein, 188; on respiration, 207, 226; 

 on respiration pigments and water in respir- 

 ation, 210, 228; on temperature and respiration, 

 213, 214; on respiration and poisoning, 216, 

 229; on respiration and growth, 217; on carbo- 

 hydrates and asphyxiation, 224; on respiration 

 in Chlorotheciu.nl, 225; on oxygen and respira- 

 tion, 225; on respiration chromogens, 225; on 

 respiration as fermentation, 228, 229; on res- 

 piration of green and etiolated leaves, 231, 

 232, 287; of growth and ash of etiolated leaves, 

 287; on transpiration and configuration, 287; 

 P. and Iraklionov, on oxidases, etc., 178; P. and 

 Komleff , on respiration and solution concentra- 

 tion, 215; P. and Kostychev, on methods for 

 studying gas exchange, 4, 218; on anaerobic 

 respiration, 224, 227; P. and Lvov, on respira- 

 tion chromogens and alcoholic fermentation, 

 210, 229; P. and Sabanin, on fermentation of 

 lactic acid, 210; P., S. and Lochinovskaia, on 

 respiration, 210; P. and Stanevich, on respira- 

 tion and lipoids, 187 ; P. and Tolstaia, on 

 respiration chromogens, 226 



Palladine, see Palladin. 



Palladium black, 202 



Pancreatic juice, 14 



Panicum, 283, 299 



Pantanelli, on conditions affecting photosynthesis, 



27 



Papaver (see also poppy), 162 



PapilionacecE, 94 



Papillae, contact, of tendrils, 315 



Papin's digester, 58 



Paragalactan, 188 



Paraldehyde, 216 



Parasites, 48, 86, 303; parasitic fungi, 126, 303, 304 



Paratonic movements, of variation, 318-322 



Parchment paper, 112, 121, 162 



Parenchyma, 142, 289, 290, 320 



Paris, 326 



Parthenogenesis, 336 



Pasteur, life and work of, xxxiii; on bacteria cultures 

 and fermentation, 44, 203, 204, 224; on sterili- 

 zation, 54, 55; on anthrax, 182; on yeast with- 

 out oxygen, 206; on purification of yeast cul- 

 tures, 208; on acetic acid fermentation, 233; on 

 oxygen-free cultures, 261; Pasteur flask, 55, 61 



