On the Construction of Catch-water Reservoirs in Mountain Districts: For the Supply of Towns, Or for Other Purposes

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Spon, 1872 - 48 páginas
 

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Página 6 - ... their solution upon any defined method of interpretation. One thing, however, is certain: that, unless it can be done, then the statute is radically wrong, and the sooner amendments are made thereto to avoid such difficulties, the better it will be for the mining industry of the country. In fact, it is a question worthy of consideration whether it would not be advisable to have the mining laws amended so as to adopt the Spanish, Mexican, and Roman rules, and give to the miners a greater width...
Página 19 - Eawlinson considers that the puddle wall should be one foot thick at the surface of the ground, for every three feet in height of the embankment.
Página 1 - ... which had been previously proposed, the Vyrnwy scheme was adopted, and application was made to Parliament in the session of 1880 for the necessary powers to carry it out. In selecting a river as a source of supply for a large community like Liverpool, the first question to be considered is, whether the watershed or gathering ground from which the water is to be collected is of such a character as to yield, and to continue to yield, water of a quality suitable for domestic and trade purposes....
Página 25 - Forerunner on this occasion, with the result, is also a question on which some difference of opinion exists. But there can be no doubt that the...
Página 45 - By means of bore-holes this bed of gravel was discovered to extend right across the valley, and by pumping alternately at opposite ends of the trench, it was proved that this bed of gravel formed a perfect water communication under the clay.

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