7

H.— 6

embankment, and the depth of every cutting, and a datum horizontal line, which shall be the same throughout the whole length of the work or of any branch thereof respectively, and shall be referred to some fixed point (stated in writing on the section) near some portion of the work, and, in the case of a canal, cut, navigable channel, public road, or railway, near one of the termini thereof. 36. In the case of a Bill for improving the navigation of any river, there shall be a section specifying the levels of both banks of the river ; and, where any alteration is intended to be made in those levels, the section shall describe the same by feet and inches, or by feet and decimal parts of a foot. 37. In every section of a railway the line of the railway marked thereon shall correspond with the upper surface of the rails : distances on the datumline shall be marked in miles and furlongs to correspond with those on the plan : a vertical measure from the datum-line to the line of the railway shall be marked in feet and inches, or in feet and decimal parts of a foot, at each change of the gradient or inclination ; and the proportion or rate of inclination between each such change shall also be marked. 38. In every case where the proposed railway-line is to cross any public road, navigable river, canal, or existing railway, the height of the proposed rail-way-line above, or the depth thereof below, the surface of such road, river, canal, or existing railway, and the height and span of every arch of all bridges and viaducts by which the proposed railway is to be carried over the same, shall be marked on the section in figures at the point of every such crossing ; and, where the proposed railway is to be carried across any public road or existing railway on the level thereof, such crossing shall be so described on the section, and it shall also be stated whether or not that level will remain unaltered. 39. If it be intended to make any alteration in the water-level of any canal, or in the level or rate of'inclination of any public road or existing railway that will be crossed by the proposed railway, then each such alteration shall be stated on the section, and shall be numbered, and cross-sections referring to the numbers, on a horizontal scale of not less than one inch to three hundred and thirty feet, and on a vertical scale of not less than one inch to forty feet, shall be added, showing the present surface of the canal, road, or existing railway, and the intended surface thereof when altered. The greatest of the present and intended rates of inclination of any such road or existing railway shall also be marked in figures on the cross-sections ; and, where any public road is crossed on the level, a cross-section of that road shall be added. Every cross-section shall extend for two hundred yards on either side of the centre of the proposed railway. 40. Wherever the extreme height of any embankment or the extreme depth of any cutting exceeds I five feet, the extreme height above or depth below the surface of the ground shall be marked on the section in figures ; and if any bridge or viaduct of more than three arches intervenes in any embankment, or if any tunnel intervenes in any cutting, the said extreme height or depth shall be so marked on each of the parts into which the embankment or cutting is divided by the bridge, viaduct, or tunnel. 41. Where it is proposed to make a tunnel instead ' of an open cutting, or a viaduct instead of a solid tunnel or viaduct shall be marked on the section.

Levels to be shown where navigation affected. 5.0., No. 42.

Contents of section of railway. Ibid., Nos. 43 and 44.

Height of railway over crossing to be shown. Ibid., No. 45.

Alteration in level to be shown. Ibid., No. 46.

Height of embankments and depth of cuttings. Ibid., No. 47.

Tunnels and viaducts to be marked. Ibid., No. 48.