332 



INDEX. 



Fucus, brown pigment of, 53 

 Fungi, nutrition of, 68 



Gardiner, W., on printing photo- 

 graphs in starch, 25 ; his method 

 of showing root pressure, 76; 

 on tannins, 266 



Garreau, on bloom and transpira- 

 tion, 111; his experiment on 

 stomatal transpiration, another 

 method of performing, 102 



Gas, diffusion through epidermis 

 of, 49 



Gas-analysis, Pfeffer's method used 

 in assimilation experiments, 

 41 



Gas-chamber, use of, 18 



Gelatine for air-tight junction of 

 leaf-stalk, 108 ; used in experi- 

 ments on contact stimulation, 

 201 



Geleznow on frost producing curva- 

 ture of branches, 180 



Geotropic sensitiveness localised in 

 root-tip, 174 



Geotropism, 163 ; (negative) change 

 of form accompanying, 165 

 oxygen necessary for, 166 ; re 

 corded on revolving drum, 172 

 transverse, see Diageotropism 



Germination, method of preparing 

 seeds for, 142 



Gingko, lenticels of, 110 



Glucosazone, 284 



Glucose, see Sugars 



Glucosides, 274. {See also Tan- 

 nins.) 



Glycase, see Ferments 



Glycerin, 261 ; assimilation of, 

 33 ; production of in saponifi- 

 cation of oils, 262 ; qualitative 

 tests for, 263; estimation of, 

 264; use of in extracting fer- 

 ments, 304 



Godlewski, on effect of excess of 

 CO2 on assimilation, 26 ; on 

 formation of starch being de- 

 pendent on presence of COo, 

 26 n. ; on Hartig's experiment, 

 90 n. 



Grand period of growth, 147 



Grass-haulms, geotropic curvature 

 in, 165; growth of pulvinus in 

 when fixed horizontally, 165 



Green on ferments, 301 



Griess' method for estimating ni- 

 trites, 258 



Gris on iron and chlorophyll- for- 

 mation, 57 



Growth, affected by light, 161, 

 162 ; by temperature, 145, 156, 

 160; conditions of, 142; de- 

 pendent on full turgescence, 144 ; 

 distribution of in roots, 146 ; 

 in shoots, 147; effect of tem- 

 perature on, 156-158, 160; 

 lever used in measuring, 158; 

 measured by marks painted on 

 roots, &c., 144 n. ; method of 

 measuring with vernier, 149 ; 

 oxygen a necessity for, 143, 144 ; 

 periodicity of, 162 ; and plas- 

 molytic shrinking, 148; region 

 of maximum coincides with 

 region of curvature, 163, 164; 

 and respiration, 158 



Gymnosperms, production of chlo- 

 rophyll in darkness by, 55 



Hanging drop, use of, in fungus 

 culture, 70 



Heat, effect of, on assimilation, 

 37; on chlorophyll formation, 

 55 ; on sensitiveness of Mimosa, 

 203; on tendrils of, 201; in- 

 jurious effect of, 14, 15 ; opening 

 of flowers produced by, 219 ; 

 produced during imbibition, 118; 

 during respiration, 11 



Heckel on irritable stamens of 

 Berberis, 209 n. 



Hedera helix, variegated leaves of, 

 tested for starch, 23 



Helianthus for assimilation experi- 

 ments, 31; tuberosus, etiolated, 

 57 



Heliotropic curvature, 180 ; stimu- 

 lus, transmission of, 183 



Heliotropism, negative, 182 ; trans- 

 verse, see Diaheliotropism 



Hemp, used in experiments on 

 oils, 313 



