Is there any particular circumstance, in the formation of roads, more particularly applicable to the immediate neighbourhood of London?—In the neighbourhood of London, and of several other large towns, the materials that are to be readily procured, are of too tender and brittle a nature to endure the wear of the heavy carriages; I therefore am of opinion, that it would be proper to pave the sides of all the principal entrances into London; but not the middle, as has been done on the Commercial road and Borough Stones’-end road. My reasons for preferring the sides being paved are, that it is next to impossible to compel the carters to keep upon the pavement in the middle of the road, in too many instances; the fear of damage, from the swift going carriages, occasions them, either to draw their carts close to the sides, and walk upon the footpaths, or what is worse to leave their horses in the middle, beyond a train of carriages. The sides being paved, would enable one of those trains of carriages to enter London on one side of the road, and go out of it on the other, without many occasions to turn out of their tracks: which keeping nearly to the same tracks, upon a well-paved road, would not be prejudicial; but on a road formed of gravel is entirely ruinous. Do you consider that the plan of rolling the roads in the neighbourhood, of London, might be advantageously introduced?—The centre of the roads I should recommend to remain covered with clean-sifted and picked gravel, having as many as possible of its large, roundish and smooth stones broken by means of a hammer before the time of laying it on the road, and that an heavy iron roller, of from four to five feet diameter, and not less, might be advantageously used in the first settling down of this gravel; a small roller, such as I believe to have been tried in the neighbourhood of London, very heavily loaded on its top, might have a tendency to force the loose gravel before it so as not easily to be drawn or to mount on to the gravel driven before it without crushing the flints. I will add, I am of opinion, that a roller could not be beneficially used upon a road at any other times but after new coating it with gravel, or after a frost or the sticking of materials to the wheels may have loosened up the materials.