INDEX 



343 



Enzymes, nature of, 173 



origin and distribution of, 266 

 relations to temperatures, 265, 268,274 

 secretion of, 266 

 Enzymatic glands, of seeds, 268, 269 

 Epinasty, 114, 305, 306 

 Epiphegus, 249 

 Escombe, Browne and, on diffusion of 



gases, 190 

 Etard, on chlorophyl, 119 

 Ether, effect of, on forcing, 298 

 effect of upon Mimosa, 50 

 upon movement, 49 

 upon respiration, 252 

 Eucalyptus, transpiration of, 210 

 Euglena viridis, 134, 1 35 

 Euphorbia splendens, termination of ves- 

 sels in leaves, 203 

 Ewart, on assimilatory inhibition in plants, 



233 

 on the evolution of oxygen from 

 colored bacteria, 237 



Fagus, propagation by roots, 316 



yearly rhythm of, 297 -.-' 



Falcata, etiolation of, 117 

 Fats, extraction of, 168, 169 



properties of, 167, 168 



qualitative tests for, 169, 170 

 Fehling' s solution, 1 54 

 Fermentation, 250-274 



products of, 264 



production of heat in, 263 



saccharimeter, 156 

 Fertilization, changes induced in flower 



stalks by, 303 

 Festuca, propagation of, 325 

 Fibrillae conducting impulses, 8, 9 

 Ficus elastica, termination of vessels in 



leaves, 203 

 Figdor. on heliotropic sensitiveness, 132 

 Filix {Cystopteris), bulblets of, 313, 314 

 Fluids, movements and exchanges of, 



175-216 

 Forcing, 298 



Formaldehyde, toxic action of, 55 

 Fragaria, propagation of, 3J.8, 319 

 Freezing, general observations on, 95, 96 



in liquid hydrogen, 90 



of Spirogyra, 95 

 Fritillaria, chemotropism of pollen of, 61 

 Frost, on an auxanometer, 287 

 Functions, nature of, I, 2, 3 



of cell-components, 222 



Galloway, studies on influence of heat 

 on growth, 300 



Galls, formation and structure of, 64 

 Gametropic movements, 306, 307 

 Ganong, on apparatus, 287 

 Gases, diffusion through coatings of 

 fruits, 190, 191 

 membranes, 191, 192 

 estimation of, 225-237, 258-262 

 flow through small tubes, 189, 190 

 general relations to plants, 188, 191 

 See Boyle's law, and appendix 

 Geotropism, 71, 72 

 alterations in, 87 

 lateral, 85, 86 

 of dorsiventral organs, 84 

 of secondary roots, 82 

 reactions of, 71-81 

 transmission of impulses of, 81 

 See diageotropism, apogeotropism, 

 progeotropism, and carpotro- 

 pism 

 Geranium, 21, 22 



influence of illuminating gas on, 46 

 Germinating dish, Zurich, 46 

 Germination, effect of electricity on, 

 105, 106, 107 

 oxygen on, 45 

 in darkness, 114, 115 

 influence of alcohol on spores of 

 Marsilea, 51 

 moisture on, 66, 67 

 temperature on, 92^ 93 

 vacuum on, 46, 47 

 of bulbs, 94, 95 

 of pollen, 61, 62 



of spores of myxomycetes, 10, 68 

 Gemmae, propagation by, 310 

 Gies, on composition of plants, 147 

 Giesenhagen, on experiment with clino- 

 stat, 76 

 on transpiration, 205 

 Gladiolus, propagation of, 317 

 Gloxinia, leaf-cuttings, 317 

 Glucoses, properties of, 149, 150 

 Glucosides, extraction and estimation, 



150-152 

 Goebel, on leaf-forms, 69, 143, 145 

 on propagation of mosses, 312 

 on regeneration, 310 

 Golden, on an auxanometer, 287 

 Grafting, 321, 322, 323, 324 

 Goodyera, amitotic division of the nucleus 



in. 282 

 Grafts, 37 



Grape, diffusion of gases in, 191, 192 

 Gravity, formative influence of, 88 



nature of relation to plants, 71, 72 

 influence on growth, 72 



