INDEX 



353 



Nutrition, of fungi, 79. 1731 compared to poisoning, 



227 

 Nutting, Applied optics. 22 



O 



Oak, leaf-mould from leaves of, 67 



Oat (see also Avena), 73, 74. 88, 94. 96, 13". T 59. 

 161, 172 



Ohno, on gas excretion in Xclumbium, 130 



Oil, 29, 150, 166, 332; to exclude oxygen, etc., 13s. 

 259; linseed, xxviii; mustard. 166 



Omelianski, see Omelianskii. 



Omelianskii, on sulphur bacteria, 49; on nitrifying 

 organisms of soil, 49, 69; on nitrifying organ- 

 isms, 69; on bacteriological-chemical methods, 

 210. (See also Vinogradskii and O.) 



Omeliansky, see Omelianskii 



Onion (see also Allium), 180 



Oogonium, 332 



Oppenheimer, Fermente, 163, 201 



Optimum temperature, 253, 254 



Opuntia, 319 



Organic acids, 188; compounds, xxvii, xxviii; forma- 

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

 by, 36-39; assimilation of energy from, by 

 plants without chlorophyll, 42-47; transfer of, 

 148-150 



Orlov, 92 



Ortho-dioxy-benzene, 223 



Osborne, on plant proteins, 155, 157, 158 



Osmometers, ill, 112, 243 



Osmosis, 104, 109 



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

 122; pressure, no, in, 113; 117. 118, 119, 123, 

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

 water, 101; of cell sap. 123 



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

 ische Chemie, 220; on enzymes, xxviii, xxx 



Ostwald, Wolfg., on colloids, ill 



Otocysts, 256 



Otto and Kooper, on poisons in soil, 101 



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

 and narcosis, 183 



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

 145, 147 



Oxalis, 249, 319 



Oxidases, xxix, 166-168, 223, 225 



Oxidation (see also combustion and respiration), 

 xxviii, xxix, 43, 48, 104, 189, 198, 199, 201, 

 208, 219, 220, 224, 230 



Oxidizers, 207 



Oxidizing enzymes, 166 



Oxygen, xxviii, 1-5, 16, 18, 49, 67, 101-105, 107, 

 150, 168, 172, 173, 182, 185, 190, 191, 198, 199, 

 203, 204, 208, 209, 212, 214, 216, 218-220, 254, 

 258; influence of oxygen content of air on 

 growth, etc., 258-260 



Oxygenases, 144, 168 



Oxymethylene, 29. 30 



Ozone, 58 



Palisade parenchyma, 287, 288 



Palladin, on etiolated leaves and on chlorophyll 

 formation and solution concentration, 17; on 



plant proteins, 158; on respiration enzymes, 

 163; on reductase, 168, 207; on enzyme action 

 in killed plants, 169; an anaerobic protein de- 

 composition, 172; on respiration'andinitrogen- 

 ous substances, 180, 229; on light, protein 

 formation and respiration, 181; on carbohy- 

 drates from protein, 185; on respiration, 204, 

 223; on respiration pigments and water in 

 respiration, 207, 225; on temperature and 

 respiration, 210, 211; on respiration and poi- 

 soning, 213, 226; on respiration and growth, 

 214; on carbohydrates and asphyxiation, 221; 

 on respiration in Chlorothecium, 222; on oxygen 

 and respiration, 222; on respiration chromo- 

 gens, 222; on respiration as fermentation, 225, 

 226; on respiration of green and etiolated 

 leaves, 228, 229, 285; of growth and ash of 

 etiolated leaves, 285; on transpiration and 

 configuration, 285; P. and Iraklionov, on oxi- 

 dases, etc., 167; P. and Komleff, on respiration 

 and solution concentration, 212; P. and 

 Kostychev, on methods for studying gas ex- 

 change, 4, 215; on anaerobic respiration, 221, 

 224; P. and Lvov, on respiration chromogens 

 and alcoholic fermentation, 207, 226; P. and 

 Sabanin, on fermentation of lactic acid, 207; 

 P., S. and Lochinovskaia, on respiration. 207; 

 P. and Stanevich, on respiration and lipoids, 

 184; P. and Tolstaia, on respiration chromo- 

 gens, 223 



Palladine, see Palladin. 



Palladium black, 199 



Pancreatic juice, 13 



Panicum, 281, 297 



Pantanelli, on conditions affecting photosynthesis. 

 26 



Papaver (see also poppy), 159 



Papilionacem, 94 



Papillae, contact, of tendrils, 313 



Papin's digester, 57 



Paragalactan, 185 



Paraldehyde, 213 



Parasites, 47, 86, 301; parasitic fungi, 126, 301, 302 



Paratonic movements, of variation, 316-320 



Parchment paper, 112, 121, 159 



Parenchyma, 142, 287, 288, 318 



Paris, 324 



Parthenogenesis, 334 



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

 and fermentation, 43, 200, 201, 221; on sterili- 

 zation, 53, 54; on anthrax, 182; on yeast with- 

 out oxygen, 203 ; on purification of yeast cul- 

 tures, 205; on acetic acid fermentation, 230; 

 on oxygen-free cultures, 259; Pasteur flask, 54, 

 60 



Pathogenic bacteria, 182, 183 



Pavetta, 78 



Pea, 73. 74. 76, 88, 94. 137. 158, 159. 165. 184, 

 219, 224, 253, 262, 281, 285, 312 



Peach, 187 



Pelargonium, 211 



Pelletier and Caventou, on chlorophyll, 6 



Penetration, of cells and stone by fungi, etc., 126 



Penicillium, 79, 123, 168, 173 



Pentoses, 162 



Peptones, 43, 69. 156, 158, 159, 161, 173. 271, 

 300 



