This line of rails is laid down throughout upon continous bearings, but the method of connecting the rails to those bearings, and of connecting the latter to the transverse sleepers, or rather ties, is varied in different parts of the line. There are other variations which our space will not permit us to enter upon, we have therefore selected for our illustration that particular modification of the permanent way, to which we understand Mr. Brunell gives the preference.
Fig. 1 represents a transverse section of the permanent way; and Fig. 2 a longitudinal view. At a a are the longitudinal bearing timbers having a scantling of about 15 X 9 and joined continuously through the line. These timbers are united together at right angles by transverse ties b b, at about every 9 feet distance; these are also of timber, about 6 inches by 9, and fastened by means of straps and bolts d d. These ties preserve the parallelism of the continous bearings. On the upper surface of the latter are laid thin boards of prepared hard wood, and fastened thereto by nails. The width of these boards is about 8 inches, and on them is laid the continous rail, in lengths of about 15 feet each, end to end throughout. The form of these rails is that often denominated the "hog trough" or "bridge" rail; the shape is however pretty well indicated in Fig. 1, at c c. The same rail is shown in our account of the Brighton and Hastings permanent way, on a larger scale. Mr. Brunell was the inventor of this form of rail, and it is undoubtedly a very efficient one.