At the foot of the second incline, there is about of line used by up and down trains, and at the east and west extremities of this portion of single line there are sets of points facing to all trains descending the second incline. The construction of these inclines is also very peculiar and such as I have not hitherto met with. At the lower end of each incline, the up and down lines of railway, or rather the north and south lines of railway, since from the mode of working they are alternately used for up and down trains, are placed at an interval of about apart; but at from the top of the first, and from the top of the second incline, this interval or space is altogether done away with, and the single centre rail serves for the inner wheels of ascending or descending tracks, carriages, &c.