INDEX. 



151 



particularly to be adopted, ib. Mr. Withers' 

 successful advocacy of, *58. 

 Trees, natural agents which influence their 

 growth, 2 age of a natural duration of dif- 

 ferent species, 70 structure of, 2 diseases 

 of, 70 parts of their structure distinguished 

 by physiologists, 3 error to suppose a poor 



rits of, different species of, in ornamental 



planting, 135. 

 Wallich, Dr., oaks figured in his meritorious 



work, PtantcB ranores Asiaticce, 132. 

 Waste lands, extent of, in Britain, 85. 

 Whin, 101. 

 Whitebeam, 103 108 merits of, ib. 



quality of soil in any case advantageous to, 25 White cedar, 34. 



kinds of, propagated by layers, 28. 29 by i Willow, 34 Dr. Johnson's, *59 at Gordon 



cutting, 29, 30 by grafting, 31 spontane- | Castle, ib. forest species of, 107. 



ous bleeding of, 70 species of which best 



Willow, Weeping, fine effect of the structure 



of, in ornamental planting, 129 tribe of, 

 137. 



resist the sea-blast, 45 transplanting such as 



are of large growth, 45, 138 most judicious 



mode of 'elling, 76-progressive andcompara-j Wmtera aromatica, 136. 



tive produce of wood in different species of, Winter's Bark, an interesting species of tree 



ib. individuals that have attained to great 



perfection, 88 fast growing supposed to 

 have soft wood, 77 slow growing supposed 

 to have harder wood, 76 comparative rate 

 of increase of wood in different species of, 

 79 most profitable stage of growth to fell 

 or cut down, ib. foreign, picturesque effect 

 of, not confined to domestic scenery, 129. 



Trunk of trees, what, 7. 



Tulip-tree, soil on which it freely grows, 50 

 value of, in ornamental planting, 133. 



Value, comparative of the different modes of 

 rearing forest-trees, 42 prospective, what, 

 80 present, what, ib. 



Valuing plantations, 76, 80 example of pro- 

 spective, Irom practice, 81. 



Vapour, value ol, to healthy vegetation, 20 

 experiment on the effect of, *20. 



Vegetation, general view of the process of, 15. 



Ulex, 101. 

 Ulmus, 34, 106. 

 Underwood, see Coppice. 



Walnut, 99 species of, ib. comparative me- Zizyphus, 98 



for ornamental planting, 136. 



Withers, William, of Holt, Norfolk, his tracts 

 on forest-planting, *39 advocates success- 

 fully trenching and manuring as the best 

 preparation of certain soils for the reception 

 of forest-tree plants, 58 results of his in- 

 quiries respecting the stiength of different 

 kinds of wood, *77, 78. 



Woburn Abbey Park, oaks in, 49 silver-fir 

 in, ib. Beech in, ib. 



Wood, what, 5, 7 examination of different 

 kinds of, 8, 9, 10, 11 of the oriental plane, 

 10 alder, ib sycamore, ib. popl.ir, ib. 

 locust, ib. lime, 11 laburnum, ib. 

 elm, 8 oak. ib. ash, ib. beerh, ib. 

 chestnut, 9 hornbeam, ib. birch, ib. 

 horse-chestnut, ib yearly increase of, in 

 trees how ascertained, 5 how far quick or 

 slow growth of trees influences the hardness 

 or sofiness of, 77, *. 



Woodlands, great profits obtained from certain 

 kinds of, 47. 



Yew-tree, 121. 



THE END. 



London : W.CLOVVKS, Stamford Street. 



