INDEX. 



:34H 



Tartaric acid, its components, 215 

 Temperature for cuttings, 181 



- internal, of plants, 



221 



142, 320 



— for germination, 16 



— endured by seed, 16 



— of soils, 18 

 endured by plants, 



— '■ at night, 162 



its influence over 



transpiration, 139, 164 

 Theophrasta latifolia, 183 

 Thinning fruit, its importance, 



311 

 Tipula pennicomis, 194 

 Tobacco seed, 15 

 Training, 174 

 to check the progress of 



the sap, 217 

 Transformations, 173 

 Transpired matter, 198 

 proportioned to 



that imbibed, 138 



decreases with 



the temperature, 139, 164 



— influenced by 



the dryness of air, 141 

 Transplanting, its effects, 50 



why in autumn, 68 



Trenching, 51, 58, 86 



Tropical plants which endure our 



climate, 316 

 Tniffie, 49 

 Tuberous roots, 137 

 Tulip pollen, 200 

 Turnip flea or fly, 273 



warts, 277 



Turnips secured from the fly by 



■early sowing, 275 

 Tussilago farfara, 119 



Ulcers, 279 



, analysis of discharge from, 



282 

 Ulex europaeus, 115 

 Ulmus campestris, 117 

 Urtica urens, 117 



Varieties, raising, 196 

 Vegetable manures, 91 



mould, 329 



Ventilation, why needed, 145 

 Vine, increase of its leaves, 208 



training vigorous, 217 



when it grows, 164 



Vines, their roots vv^hen forced, 73 



Viola tricolor, 192 



Vital power of plants, 309 — 333 



Wall fruit, sheltering, 219 



Warts on turnips, 277 



Water required for germination, 29 



quality important, 30, 33 



— not sole food of plants, 69, 



81 



-- salts in, 70 

 — not to be 



in excess, 70, 



313 

 — when to be applied, 74 



Wax for budding and grafting, 175 

 Way-thistle, 118 



White-washing, how injmious, 116 

 Wind, why cooling, 222 



periodical, 223 



Wood, its construction, 130 



promotion of its growth, 131 



promoting its ripening, 132, 



162 



value of as fuel, 226 



Woody fibre, 94 

 Wounds of plants, 302 



