6. The Guildford Road, along the Westminster Road through Battersea and Wandsworth.
7. The Staines, or Great Western Road, from Knightsbridge through Brentford.
8. The Amersham and Aylesbury Road, along the Harrow Road, and through Harrow-on-the-Hill.
9. The St. Alban’s Road, along the Edgeware Road through Elstree.
10. The Oxford Road, from Bayswater through Ealing.
| 11. The Great Holyhead Road. | From Islington, by and through Barnet. |
| 12. The Great North Road. |
As to the amount of resistance to traction offered by different kinds of pavement, or the same pavement under different circumstances, the following are the general results of the experiments made by M. Morin, at the expense of the French Government:—
1st. The traction is directly proportional to the load, and inversely proportional to the diameter of the wheel.
2nd. Upon a paved, or hard macadamized road, the resistance is independent of the width of the tire, when it exceeds from three to four inches.
3rd. At a walking pace the traction is the same, under the same circumstances, for carriages with springs and without them.