378 



INDEX. 



PAGE 



Temperature, effect produced by excess of, on the Nectarine tree . . 282 



, tropical ..... . 225 



for the Pine apple .... . 264 



, effect of one too low on the stems of trees . 287 



Tendrils of plants, on the motions of . . . . . 1 64 



, their convolute mode of growth explained . . . 168 



of Ampelopsis quinquefolia are attracted to the shade . .165 



of the Vine . . . . . . . . 101 



Tissu cellulaire ........ 137.149 



tubulaire ........ 146 



Tissue, Cellular, expands and contracts with change of temperature . .149 



Timber, its quality affected by the season at which it is felled . . .110 



, felled in winter, and summer, difference in the specific gravity of . 112 



Trees, propagated not by seeds, inherit the decay of the parent stock . . 83 



, component parts of their solid portions consist of very little earthy matter 21 1 



, upward tendency of their luxuriant shoots . . . .128 



Training of pear-trees ........ 202 



Transplanted standard trees, upon their pruning and management . . 233 



Tuberous roots . . . . . . . . . 110 



Tuberous-rooted plants . . . . . .115. 132 



Tubers analogous to branches . . . . . . . 157 



ULMUS mon tana, reproduction of its bark . . .137 



campestris . . . . . . . . 341 



suberosa ...... . 341 



glabra . . 341 



montana . . . . . . . .146 



Utriculi . . . . . . . . . 137 



VARIATION, the constant attendant on cultivation . . . . 1 72 



Vegetable mould applied as manure . . . . . 195 



Vegetation increases the susceptibility of cold in plants . . .93 



, concise view of the theory respecting it . . . 189 



Ventilation ......... 264 



of forcing-houses . . . . . . . 224 



Vessels, central ....... 86.121.191 



, lateral ......... 122 



of trees are generally capable of an inverted action with regard to the 



motion of fluids . . . . . .140 



Vine . . . . . . . . . . 89 



, experiments made with its shoots . . . 105. 170 



relating to the growth and direction of its tendrils . 164, 167 



in order to obtain new varieties of the . . . 176 



, on its grafting ... . . . 258 



, composition for stopping its bleeding . . 181 



, adaptation of its habits to climate . . . .173 



