§ 22. In cases of Bills to authorise the laying-down of a tramway, the promoters shall obtain the consent of the local authority of the district or districts through which it is proposed to construct such tramway, and where in any district there is a road authority distinct from the local authority, the consent of such read authority shall also be necessary in any case where power is sought to break up any road subject to the jurisdiction of such road authority. For the purposes of this Order, the local and road authorities in England and Scotland shall be the local and road authorities mentioned in Section 3 and Schedule A of "The Tramways Act 1870," except that in the case of such Schedule tramways situate within the area of the county of London "the London County Council" shall be substituted for "the Metropolitan Board of Works," "urban district council "for" local board," and "rural district council "for" vestry, select vestry, or other body of persons acting by virtue of any Act if Parliament, prescription, custom, or otherwise, as or instead of a vestry or select vestry"; and in Ireland shall be the grand jury of the county in respect to any highway or portion of highway within the jurisdiction of such grand jury; and in respect to highways wholly or partly within any city, borough, town corporate, or other place or district in which the public roads are not under the control of the grand jury of the county, shall bathe respective local and road authorities of such city, borough, town corporate, or other place or district mentioned in Section 38 of "The Tramways (Ireland) Act 1860": Provided that where it is proposed to lay down a continuous line of tramway in two 791 or more districts, and any local or road authority having jurisdiction in any such districts does not consent thereto, the consents of the local and road authority, or the local and road authorities having jurisdiction over two-thirds in length of the streets and roads along which such line of tramway is proposed to He laid, shall he deemed to he sufficient.