INDEX. 



591 



Triticum vutgare, sensitiveness of 



tips of radicle to moist air, 184 

 TropaeoJum majus (?), sensitiveness 



of apex of radicle to contact, 167 



, circuninutation of stem, 204 



, Influence of illumination on 



nyctltropio movements, H3S-340, 



344 

 , heliotropio movement and 



circumnutation of epiootyl of n. 



young seedling, 428, 429 

 , of an old intiTnode towards a 



lateral light, 430 

 , stems of very young plants 



highly heliotropio, of old plants 



slighUy apheliotropio, 453 



, effect of lateral light, 484 



minus (?), cbcumnutation of 



buried and arched epicotyl, 27 



U. 



f77f J, or gorse, first-formed leaf nf, 

 415 



Uraria lagopus, vertical binking of 

 Uarteis at night, 365 



Vaiicher, on the hurying of the 

 flower-heads of Trifolium suh- 

 terraneum, 513; on the protec- 

 tion of seeds, 517 



Verbena melindreg (V), circumnuta- 

 tion of stem, 210 



, apogeotropio movement of 



stem, 495 



Vida faba, circumimtation of ra- 

 dicle, 29, 30 



, of epiootyl, 31-33 



, curvature of hypoootyl, 92 



•, sensitiveness of apex of ra- 

 dicle, 132-134 

 , of the tips of secondary ra- 

 dio es, 154 



, of the primary radicle above 



the apex, 155-158 



, various experiments, 135-1 43 



, summary of results, 143-151 



, power of an irritant on, oom- 



28 



■WIL30N. 



pared with that of geotropism, 

 151-154 

 Viciafdba, circumnutation of leaves, 

 233-235 



, circumnutat.on of terminal 



leaflet, 235 



, effect of apogeotropism, 444 



■ — -, effect of amputating the tips 

 of radides, 523 



, regeneration of tips, 526 



, short exposure to geotropio 



action, 527 



, effects of amputating the tips 



obliquely, 528 



, of cauterising the tips, 529 



, of grease on the tips, 534 



Vines, Mr., on cell growth, 3 

 Vries, De, on turgesoence, 2 ; on 

 epinasty and hyponasty, 6, 267, 

 2ii8; tlie protection of hypo- 

 cotyls during winter, 557 ; stolons 

 aplieliotrop 0, 108 ; Uie nyctl- 

 tropio movument of leaves, 283 ; 

 the position of leaves influenced 

 by epin isty, their own weight and 

 apogeotropism, 440 ; apO;^eotro- 

 piam in pi tioles and midribs, 443 ; 

 the stoLms of strawberries, 454 ; 

 the joints or pulvini of the Gia- 

 mincae, 502 



W. 



Watering, effect of, on rorlieria 

 kygrometrica, 336-338 



Wells, ' Essay on Dew,' 284, n. 



Wiesuer, Prof., on the circumnuta- 

 tion of the hypocotyl, 9H, 100; 

 on the hooked tip of climbing 

 stems, 272; observations on the 

 effect of bright sunshine uu 

 chlorophvU in leaves, 446 ; the 

 effects of an intermittent light, 

 457 ; on aerial roots, 486 ; on 

 special adaptatiims, 490 



Wigandia, movement of leaves, 248 



Williamson, Prof, on leaves of 

 Drosera Capensis, 414 



Wilson, Mr. A. S., on the move- 

 ments of Swedish turnip leaves, 

 230, 298 



