The Practice of Embanking Lands from the Sea, Treated as a Means of Profitable Employment of Capital: With Examples and Particulars of Actual Embankments, and Also Practical Remarks on the Repair of Old Sea-walls

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J. Weale, 1852 - 238 páginas
 

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Página 21 - Having drawn the base line ab, construct the cubes d and cm; draw ac, 5 base to 1 perpendicular. Set off 6 feet from the top of the cube d towards the base line, for the high-tide wave. Draw the line ds, intersecting ac' at s. Draw as and sm and hb, and this completes the main bank, with the double cubes of its height backed by a half-cube, besides the front with a base of 4 to 1, the gravel footing bringing it 5 to 1.
Página 175 - ... of the embankment as nearly perpendicular as the security of the base would allow. " Within, on the land-side, is cut a ditch, twelve feet wide, five feet deep, and four feet at bottom; the earth from which was thrown into the mound. My former...
Página 98 - ... outlay of capital without adequate return, since a more profitable appropriation of the land can be made without them ; and besides, if the natural fertility of these lands is exhausted by a succession of corn crops, it will be vain to look for their becoming rich grass lands afterwards. The period of tillage, therefore, should be limited to such a space of time as may be sufficient, according to the nature of the soil, to bring it into a fit state for the best grasses to grow to perfection....
Página 175 - I had shut out the sea from a part of it, about six yards square were immediately dug, and sown with horsebeans and oats, which, though the summer proved very dry, and consequently unfavourable, produced of each a fair return of sound good corn ; and the last harvest the same spot being sown with wheat, yielded an excellent crop. The next spring I mean to try it with barley and turnips. My first inclosed lands in this parish have produced two succeeding crops of fine oats, and are now growing a very...
Página 175 - The frame and flooring are of fir, which lies under water as durably as oak. The land thus inclosed is partitioned into four nearly equal parts, by new outditches, twelve feet wide, five deep, and four at the bottom, which, with small intersecting rills from various parts, give, the whole a good drainage of its salts, on the fall of heavy rains : and, by a course recently made from a distant brook, each division of this land is now amply supplied with fresh water. Not less than eight hundred South-Down...
Página i - EMBANKING LANDS FROM THE SEA, treated as a means of profitable Employment of Capital; with Examples and Particulars of actual Embankments, and also practical Remarks on the Repair of Old Sea Walls," by JOHB WIOOIHS, FQS — Double Volume, Price 2*.
Página 21 - ... ordinary spring tides, which is taken by way of example at 10 feet. It is 20 feet wide at top, and with a slope to sea side, partly of 5 feet base, and partly of 4 feet base, to 1 perpendicular, as the minimum slopes. " 2nd. The outburst bank, 5 feet high and 8 feet wide at top, and with a slope of but...
Página 200 - South Holland, grossly estimated at 100,000 acres within the old sea-dike bank, has long been an object of embankment. Ravenbank, the origin of which is quite unknown, appears to have been the third which had. been formed for securing a small part of this tract from the sea, leading from Cowbit.to Tidd St.
Página 99 - There must, however, be a very great difference of treatment with regard to those light, loose, sandy soils, of which some spots of the intake level will be found to consist, when taken from the low slobs of a sandy shore which has been covered by every tide. Such loose sands, if blowing when dry, should be fixed as soon as possible by any feedable grass, that can be made to grow upon them, until a better sward can be produced. On such loose spots the agrostis maritima or sea-side...
Página xi - ... enormous imports. Indeed, the expense of the terrible War will impose upon us the duty of fully utilising all our energies and every possible plot of land to assist in the steady reduction and amortisation of our gigantic creation of credit. CHAPTER XI Utilisation of Waste Land " The man who makes two blades of grass or two ears of corn grow where but one grew before, deserves well of his country.

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