INDEX 



357 



Sensitive plant (see also Mimosa) , xxxiv, 318 



Sensitiveness, phototropic, 282 



Sensitizer action of chlorophyll, 19 



Septa, osmotic (see also osmotic membranes), 104 



Serin, 162, 164 



Serumtherapy, 186 



Shade plants, 291, 292; leaves, 289 



Shantz, see Briggs and S. 



Shears, double, 144 



Shive, salt nutrition, water culture, etc., 83, 84, 139 



Shoot-pole, 331 



Shorey, see Schreiner and S. 



Shortening, in growth, 252 



Shreve, Edith B., on saturation deficit, etc., 138. 



(See also Livingston and S.) 

 Shulov, see Prianishnikov and S. 

 Sieber, see Nentskii and S. 

 Siegert, see Nobbe and S. 

 Sieve, tubes, 151 

 Silber, see Ciamician and S. 

 Silicon, 82, 8s, 88, 89, 92, 287; and lodging of grain, 



86; in Rochea, 265 

 Silver, 82; salts of, decomposed by red light in 



presence of chlorophyll, 19 

 Sinapis (see also mustard), 255, 281 

 Sinigrin, 169 

 Sisymbrium, 278 

 Skinner, see Schreiner, and S.; Schreiner, Reed and 



S. 

 Smirnoff, on respiration and wounding, 216, 225 

 Smolenski, on phosphatides, 186. (See also Win- 



terstein and S.) 

 Soda lime, 126 



Sodium, 82, 287; chloride. III, 118, 121, 124, 161, 

 244, 273; citrate, 273. hydroxide, 108, 109, 

 165; nitrate, 96, 121; phosphate, 91; selenite, 

 171, 173; sulphate, ill; sulphite, 5, 58 

 Sohngen, on methane bacteria, 52 

 Soil, 92-101; nitrogen, 65-67; nitrification in, 

 67-72; acidity of, 96; bacteria, etc., of, 44, 56, 

 69, 79. 98, 99, 101, 186, 205; action of root ex- 

 cretions on, 125, 126; organic matter, 67; oxy- 

 gen of, 102, 201; physiological dryness of, 100; 

 salts in, 93, 275; of moors, 201; sterilized, 72- 

 75, 98; soil science, 101; soil sickness, 99, 276; 

 temperature, 256, 276; toxins, 100, 275; mois- 

 ture and growth, 265 

 Solanin, 185 

 Solarium, 20, 123, 283 

 Soldanella, 255 

 Solids, 104 

 Solute, no 

 Solution, no, 115, 118, 119, 123; soil, 75. 92, 102, 



125, 126 

 Solvent, no 



Sommer, see Bredig and S. 

 Sorbose, 32 

 Sorbus, 123 



Sorby, on chlorophyll, etc., 7 

 Sorensen, on cell acidity, etc., 192 

 Spalding, on traumatropism, 303 

 Spallanzani, on spontaneous generation, 53; on 



sterilization, 54 

 Spectrum (see also light), and metabolism, 9. 10, 

 15, 22, 25, 29, 138; and growth, 282, 283. 290 

 Sperms, 165, 334 

 Sphcerococcus, 212 



Spirillum, 261 



Splenic fever, 185 



Spoehr, on photosynthesis, 31; on respiration, etc., 



215 



Spontaneous generation, 53-55; movements, 318 



Sporangia, bursting of, no 



Sporangiophores, 262, 281 



Spree river, 56 



Spruce, 327, 328 



Squash, 255 



Stab cultures, 62 



Stachys, 329 



Stahl, on leaf pigments, 16; on bright-colored 



leaves, 21; on stomata, photosynthesis, starch 



formation and excess of salts, 36; on mycorhiza, 



97; on injurious effects of microorganisms, 98; 



on cobalt chloride paper, etc., 136; on compass 



plants, 280 

 Stanevich, see Palladin and S. 

 Stanewitsch, see Stanevich. 

 Starch, xxxil, 28, 37, 39. 87. 152, 153. 167, 168, 188, 



190, 192, 193. 213. 214, 273, 274. 286, 337, 338; 



heat of combustion of, 51. 223; hydrolysis of, 



167, 222; in root tubercles, 76; starch grains, 



299, 301; starch sheath, 152 

 Starchy seeds, 193 

 Starling, on hormone action, 331. (See also Bayliss 



and S., Claypon and S.) 

 Statoliths, 299 

 Stebler, on leaf growth, 251 

 Stefan, on diffusion in solution, 124 

 Stegmann, see Winterstein and S. 

 Steiger, see Schulze and S.; Schulze, S and Bossard; 



Schulze, S. and Maxwell. 

 Stems, metabolism, etc., of 89, 132, 143. 150; 



growth, etc., of, 33. 246, 251, 313, 3U 

 Stephenson, in anecdote, 32, 33 

 Sterilization, 53-55. 57-59, 293; and disinfection, 



57-59 

 Sterilizer, dry air, 57; steam, 58 

 Stich, on reproduction and wounding, 216 

 Stiles, on photosynthesis, 4. (See also Jorgensen 



and S.) 

 Stipa, 266 



Stokes, on chlorophyll, 7 

 Stoklasa, on lecithins, etc., 187; S. and Ernest, on 



root excretions, 126; S., Ernest and Chocensky, 



on glycolytic enzymes, 224; S. and Zdobnicky, 



on photosynthesis without chlorophyll, 31 

 Stoll, see Willstatter and S. 

 Stomata, 36, 37. 105. 107. 108, 109, 130, 136, 266, 



286 

 Storage organs, 329, 330 



Strains (see also traction), in tissues, 253. 304. 320 

 Strasburger, on water transfer, 143 

 Streak culture, 62 

 Streaming, and diffusion, 105, 107 

 Strelitizia, 30 

 Streptococcus, 212 

 Stress (see also strains, traction), in tissues, 253; 



in water columns, 150 

 Strontium, 82; nitrate and sulphate, 91 

 Stutzer, on proteins, 160 

 Suberization, 107 

 Sugar, 31, 38, 142, 151. 182, 195, 224, 225, 229, 244, 



272, 286, 301, 302, 332 

 Sugar-cane, 32, 88 



