INDEX 



313 



Nutrient media. 45. 46, 57— 59. 182, 270; salts and 



reproduction, 295. 

 Nutrition, of fungi, 75, 158; compared to poisoning, 



207. 

 Nutting, Applied optics, 22. 



Oak, leaf-mould from leaves of, 63. 



Oat (see also Avend), 69, 70, 82, 88, 90, 125, 144, 

 146, 157. 



Ohno, on gas excretion in Nelumbtum, 118. 



Oil, 29, 138, 151, 295; to exclude oxygen, etc., 123, 

 229; linseed, xxii; mustard, 151. 



Omelianski, see Omelianskii. 



Omelianskii, on sulphur bacteria, 47 ; on nitrifying 

 organisms of soil, 47, 65; on nitrifying organ- 

 isms, 65 ; on bacteriological-chemical methods, 

 190. (See also Vinogradskii and O.)* 



Om^liaasky, see Omelianskii. 



Onion (see also Allium^, 165. 



Oogonium, 295. 



Oppenheimer, Fermente, 148, 181. 



Optimum temperature, 223* 224. 



OPuntia, 283. 



Organic acids, 173; compounds, xxi, xxii; formation 

 of, and in soil, 63; nutrition of green plants by, 

 36-39; assimilation of energy from, by plants 

 without chlorophyll, 40-45; transfer of, 136- 

 138. 



Orlov, 86. 



Ortho-dioxy-benzene, 203. 



Osborne, on plant proteins, 140, 142, i43' 

 ^Osmometers, 103, 104, 2is. 



Osmosis, 96, loi. 



Osmotic membranes, 96, 102, lOS, 106, iii, 114; 

 pressure, 102, 103, 105, 109, no, 114. 170; of 

 cells, 106, 115; values, 108; of bog water, 95; of 

 cell sap. 114. 



Ostwald, Wilh., General chemistry, 107; Theoret- 

 ische Chemie, 200; on enzymes, xxii, xxiv. 



Ostwald, Wolfg., on colloids, 103. 



Otocysts, 226. 



Otto and Eooper, on poisons in soil, 95- 



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

 and narcosis, 168. 



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

 I33» 135- 



Oxalis. 220, 283. 



Oxidase^ xxiii, isi-i53. 203, 205. 



Oxidation (see also combustion and respiration), 

 xxii, xxiii, 41. 46, 48, 96, 174. I78, I79. 181, 

 188, 199, 200, 204, 210, 211. 



Oxidizers, 187. 



Oxidizing enzymes, isi- 



Oxygen, xxii, 1-5, 16, 18, 47, 63. 95-97. 99. 138, 

 153. 157. 158, 167, 170, 175. 176. 178. 179. 183. 

 184, 188, 189, 192, 194. 196, 198-200, 203, 205, 

 224, 228; influence of oxygen content of air on 

 growth, etc., 228-230. 



Oxygenases, 132, i53- 



Oxymethylene, 29, 30. 



Ozone, s6. 



P 



Palisade parenchyma, 2S7f 258. 

 Palladm, on etiolated leaves and on chlorophyll 

 formation and solution concentration, 17; on 



plant proteins, 143; on respiration enzymes, 

 148; on reductase, 153, 187; on enzyme action 

 in killed plants, 154; on anaerobic protein de- 

 composition, 157; on respiration and nitroge- 

 nous substances, 165, 209; on light, protein 

 formation and respiration, 166; on carhohy- 

 drates from protein, 170; on respiration, 184, 

 203; on respiration pigments and water in 

 respiration, 187, 205; on temperature and 

 respiration, 190, 191 ; on respiration and poi- 

 soning, 193, 206; on respiration and growth, 

 194; on carbohydrates and asphyxiation, 201; 

 on respiration in Chlorotkecium, 202 ; on oxygen 

 and respiration, 203 ; on respiration chromo- 

 gens, 202 ; on respiration as fermentation, 205, 

 206; on respiration of green and etiolated 

 leaves, 208, 209, 255; on growth and ash of 

 etiolated leaves, 255; on transpiration and 

 configuration, 25s ; P. and Iraklionov, on oxi- 

 dases, etc., 152; P. and Komleff, on respiration 

 and solution concentration, 192; P. and 

 Kostychev, on methods for studying gas ex- 

 change, 4, 195; on anaerobic respiration, 201, 

 204; P. and Lvov, on respiration chromogens 

 and alcoholic fermentation, 187, 206; P. and 

 Sabanin, on fermentation of lactic acid, 187; 

 P., S. and Lochinovskaia, on respiration, 187; 

 P. and Stanevich, on respiration and lipoids, 

 169; P. and Tolstaia, on respiration chromo- 

 ■gens, 203. 



Palladine, see Palladin. 



Palladium black, 179, 



Pancreatic juice, 13. 



Panicum, 251, 267. 



Pantanelli, on conditions affecting photosynthesis, 

 26. 



Papaver (see also poppy), 144. 



PapilionacecEt 88. 



Papillae, contact, of tendrils, 278. 



Papin's digester, S5- 



Paragalactan, 170.' 



Paraldehyde, 193. 



Parasites, 45, 80, 271; parasitic fungi, 117, 271, 

 272. 



Paratonic movements, of variation, 280-284. 



Parchment paper, 104, 112, 144. 



Parenchyma, 130, 257, 258. 282. 



Paris. 286. 



Parthenogenesis, 297. 



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

 and fermentation, 4i» x8o, 181, 201 ; on sterili- 

 zation, SI, 52; on anthrax. 167; on yeast with- 

 out oxygen, 183; on purification of yeast cul- 

 tures, 185; on acetic acid fermentation, 210; 

 on oxygen-free cultures, 229; Pasteur flask, 52, 

 58. 



Pathogenic bacteria, 167, 168. 



Pavetta, 74* 



Pea, 69, 70, 72, 82, 88, 125. 143. 144, iSo, 169. i99. 

 204, 223, 232, 251, 255, 277. 



Peach, 172. 



Pelargonium, 191- 



Pelletier and Caventou, on chlorophyll, 6. 



Penetration, of cells and stone by fungi, etc., 117. 



Penicillium, 75. ii5. I53. IS8. 



Pentoses, 147. 



Peptones, 41, 65, 141. I43, I44. 146, 158, 241, 270. 



