. The book of the garden. Gardening. CONSTRUCTION OF GARDEN WALLS. 95 bank cut out in terraces, the base of each incline being formed into a border a a, well drained, and prepared for the trees to be planted in, with walks in front, as at b b. The inclines are covered with Welsh slates, which are powerful con- ductors of heat, set clear of the ground the thickness of a brick set on edge : the slates being drilled with small per- forations, in straight lines — the lines, say a foot distant from each other, and furnished with eyed nails, to which the branches are to be tied. Terraced walls have
. The book of the garden. Gardening. CONSTRUCTION OF GARDEN WALLS. 95 bank cut out in terraces, the base of each incline being formed into a border a a, well drained, and prepared for the trees to be planted in, with walks in front, as at b b. The inclines are covered with Welsh slates, which are powerful con- ductors of heat, set clear of the ground the thickness of a brick set on edge : the slates being drilled with small per- forations, in straight lines — the lines, say a foot distant from each other, and furnished with eyed nails, to which the branches are to be tied. Terraced walls have many advan- tages, particularly in cold and exposed situations; they can also be constructed upon surfaces where ordinary walls can- not. To render them dry, they should be built hollow, as in the annexed fig. 89, and backed with loose rubble Fig. stone, coarse gravel, or flints, to separate them from the ground behind, with prepared borders and a walk in front. With regard to height, this must be regulated by the inclined plane of the ground; but they may be from 4 to 20 feet in height. Intermediate heights, however, will be found the most suitable. Both terraced and inclined walls may be formed in situations in which scarcely any other use could be made of the ground; and if the exposure is favour- able towards the south, they will be found amply to repay the cost of erec- tion. Inclined walls were exemplified some years ago by Mr Creel man of Portobello, near Edinburgh : an account of his way of constructing them, with an engraving, was published in the fourth volume of the " Caledonian Horticultural Society's Memoirs," of which the following is the substance. Advantage was taken of a rising piece of ground near the centre of the garden, and two " sloping or almost horizontal walls, of a circular or rather a horse-shoe shape," were built. This circle was " formed into two terraces, one above the other, with a walk between, somewhat more than 3
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
