. The book of the garden. Gardening. Whether gutters, or valleys for conduct- ing off water, should be made out of one solid piece of timber, or by the combina- tion of three pieces, seems to us in no degree doubtful. Join the separate pieces as you may—nay, even cover them with copper, zinc, or lead—still they cannot be rendered waterproof, and, as a conse- quence, they will soon rot; and as the whole roof is supported by them, the durability of such roofs is shortened. Nor can wooden valleys of the same dimen- sions be considered as strong as iron ones. The gutters which we use are of the la
. The book of the garden. Gardening. Whether gutters, or valleys for conduct- ing off water, should be made out of one solid piece of timber, or by the combina- tion of three pieces, seems to us in no degree doubtful. Join the separate pieces as you may—nay, even cover them with copper, zinc, or lead—still they cannot be rendered waterproof, and, as a conse- quence, they will soon rot; and as the whole roof is supported by them, the durability of such roofs is shortened. Nor can wooden valleys of the same dimen- sions be considered as strong as iron ones. The gutters which we use are of the latter material; and we find that, with less bulk, and consequently less shade, we not only have a much stronger roof, but one which may be rendered perfectly dry. Our gutters are also cast with dove-tailed mor- tices along their sides, into which the lower ends of the astragals fit, imbedded in white-lead, and sometimes fixed in with boiling pitch.— Vide fig. 785. For an illustration of our metallic gutter, vide Plate VIIL, and full description, vide p. 59. Fig. To show the economy of mechanical power in the Chatsworth conservatory alone, Sir Joseph Paxton informs us that, even in its original form, the sash-bar machine performed the labour of twenty men for one year, and consequently saved £1200. The length of bars made by it for that conservatory would extend upwards of forty miles in a direct line, making at the rate of 2000 lineal feet of bars per day, and at an expense for. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McIntosh, Charles, 1794-1864. Edinburgh and London, W. Blackwood
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
