INDEX 



261 



Erroneous experiments, 13, 89, 101,' 103, 

 125, 159, 169, 186, 204 



Errors, 14; of instrument, 14; sur- 

 roundings, 14; organism, 15; per- 

 son, 15; mind, 16 



Etiolation, 208 . 



Evaporation, prevention, 246 



Ewaet, 30, 60, 61, 62, 66, 68, 71, 72, 



75> 2 °4 



Excretion, 78, 195 



Experiment, nature, 12 



Experiment house, care, 12, 40; de- 

 scription, 31; heating, 32; furnish- 

 ings, 32; cost, 38; simple kinds, 38; 

 management, 39 



Exposition, 18 



Farmer, 184 



Fermentation, products, 137; appara- 

 tus, 137; solutions, 138; demonstra- 

 tion, 138; quantities, 140 



Fernald, 163 



Filaments of glass, ,246 



Fischer, 119 



Fisher, 30 



Fitting, 225 



Fletcher, 196 



Food of plants, 121 



Forces operating on plants, 65, 66, 70 



Frank and Tschirch, 23, 83 



Friez, 182 



Fritzsche, 215 



Frost, 201 



Gallencamp, 54 



Galvanotropism, 240 



Gardiner, 88, 90 



Garreait, 190 



Gas, absorption, 163; analysis, 105; 

 chamber, 73; fumes, 40; generators, 

 52; room, description, 35; stages, 

 description, 72; table, description, 

 47; volumes, 15 



Gauges, pressure, 157 



Geotaxis, 228 



Geotropism, 219; in seedlings, 219; 

 gravitation, 221, neutralized, 221; 

 side branches, 227; special cases, 228; 

 correlations, 228; force, 229; rela- 

 tion to growth, 230; stimulus, 232; 

 ecology, 233; features, 234 



Germination for experiment, 210 



Glass Brttles, manipulation, 246 



Glass Tul ing, manipulation, 246 



Glassware, 52 >'• 

 godlewski, 169 

 Goebel; 218 

 Golden, 201, 204 



Goodale, 28, 30, 63, 68, 149, 176, 192 

 Gram'-morecule, 151 

 Grand Period of Growth, 206 

 Graphs, use, 19; construction, 20 

 Gravitation effects, 65, 66, 219 

 Green, 29,' 30, 120, 121, 142, 184 

 Greenhouse, description, 31 

 Griffin and Sons, 249 

 Ground Stoppers, loosening, 248 

 Growth, 27; auxesis, 196; of leaves, 

 stems, roots, 107; rate, 198; meas- 

 urement, 199; temperature, 205; 

 grand period, 206; quantities, 207; 

 light, 208; etiolation, 208; colored 

 lights, 208; moisture, 209; germina- 

 tion, 210; electricity, 211; other con- 

 ditions, 212; relations to respiration, 

 212; phenomena, 212; osmotic pres- 

 sure, 213; nutations, 213; other 

 movements, 216; relation to tran- 

 spiration, 216; differentiation, 217; 

 literature, 218 

 Guttation, 78, 194 



H 



Haberlandt, 76, 235 



Hall, 184 



Hansen, 102, 174, 223, 233 



Haptotropism, 238 



Haug, Miss, 90 



Heat, effects, 65, 66, 67, 91, 132, 171, 



205, 240; separation from light, 248 

 Hedgcock, 211 

 Heliotropism chambers, 234 

 Hempel, 104, 105 

 Hilgard, 160 

 hoehnel, i74 

 Hoods, 248 



Humidity effects, 209, 237 

 Hydathodes, 194 

 Hydrostats, 248 

 Hydrotropism, 237; roots, 237; stems, 



'238 

 Hygrographs, 181 

 Hygrometers, 39, 181, 190 

 Hygroscopes, 47, 190 

 Hygroscopicity of threads, 204 

 Hyponasty, 216 



Ice Plants, 194 

 Illustration, 18 

 Imbibition, 143 



