Waste weirs resemble ordinary solid weirs in providing for the surplus discharge from a reservoir of an impounded river or mountain stream over their crest; but in reality they form part of a masonry reservoir dam for storing up water for water-supply or irrigation, kept purposely lower than the rest of the dam to allow the excess of water to escape down the valley (see Water-Supply).
The act of 1849 also forbids bulland bearbaiting, or fighting between any kinds of animals; requires the provision of food and water to animals impounded; lays down regulations as to the treatment of animals sent for slaughter, and imposes a penalty for improperly conveying animals.
Permits for hydraulic mining are granted by the commission only when all gravel is satisfactorily impounded and no harm is done to the streams; and the improvement of these, which was impossible so long as limits were not set to hydraulic mining, can now be effectively advanced.
The chemists and bacteriologists do not appear to have finally determined the true nature and origin of this growth, but it is found in the impounded waters, and passes into the pipes, where it rapidly increases.
The following technical terms will indicate the procedure in distress with time: Aurfocre (= demand of payment, stating the amount in presence of witnesses); apad (= delay); athgabail (= the actual seizure); anad (= delay after seizure, the thing remaining in the debtor's possession); toxal (= the taking away of the thing seized); fast (= notice to the debtor of the amount due, the or pound in which the thing seized is impounded, and the name of the law agent); dithim (= delay during which the thing is in pound); lobad (= destruction or forfeiture of the debtor's ownership and substitution of the creditor's ownership).