Courts of Equity will also interpose by injunction in cases of nuisance, to restrain and prevent an injury for which courts of law, in many cases, could not give an adequate compensation, 1 _Fonb. Tr. Eq._ 31; _Coulson_ v. _White_; 3 _Atk._ 21; _Atty. Gen._ v. _Doughty_, 2 _Ves._ 453. And though the Court of Chancery, on application to have an assumed nuisance (as a mill-dam which had been destroyed) restored to its original state, has refused an injunction; yet to accelerate the determination of the right it has directed the defendant to bring an action of trespass, and every thing to be admitted on both sides necessary for trying the mere right. _Birch_ v. _Sir Lyster Holt_; 3 _Atk._ 725; 2 _Ves._ 414; on this principle see also _Lord Teynham_ v. _Herbert_, 2 _Atk._ 483, and cases there. Noxious, dangerous, or highly disagreeable trades and manufactures are nuisances, except when exercised in accustomed places;[546] thus an ancient brewery[547] though in the midst of a populous town, is no actionable nuisance, 2 _Lil. Abr._ 246; _Jones_ v. _Powell; Palm._ 536; _Hutt._ 153; because it shall be supposed to have been erected when there were no buildings near; but if a brewery or glass-house (_Rex et Regina_ v. _Wilcox_, 2 _Salk._ 458) be newly erected, it is a nuisance, 1 _Hawk. Pl._ 199; _Jones_ v. _Powell_, _Hutton_ 135, for the smoke is at least destructive of comfort and may be injurious to health; much more then is a smelting-house a nuisance when, in addition to dense and continued volumes of smoke, the poisonous fumes of sulphur, lead, antimony, and arsenic, not only taint the atmosphere, but so affect vegetation as either to destroy it altogether or poison the cattle that feed upon the adjacent herbage; or where the vapours injure fruit trees, 4 _Ed._ 3, and 4 _as. pla._ 3, cited in a pamphlet A. D. 1639 in Serjeant _Hill’s_ collection of law pamphlets, vol. 5; see also 1 _Roll. Abr._ 89; 1 _Burr. R._ 260. Now though the business of smelting is highly necessary, and it may appear hard to restrain a man from making the most profitable use of his lands and premises, yet public health is of primary importance,[548] and these maxims of law must ever be remembered: _Prohibetur ne quis faciat in suo, quod nocere possit alieno: et sic utere tuo ut alienum non lædas. Palm._ 536; 9 _Co. Rep._ 58. Next to the fumes of metallic poisons we may rank the vapours of sulphuric, nitric, muriatic, and other acids, when carelessly prepared in large quantities, _Rex_ v. _White and Ward, Burr._ 333.