CHAPTER VII.

ROAD ROLLING.

First introduction of rollers -- Mr. Parry on steam rolling -- Cost for repairs -- Number of men necessary -- Fuel used -- Other uses for engine power -- Spikes for chequering -- Binding material -- Gradients -- Work effected -- Description of manner in which roller should be applied -- Method adopted in the United States -- Use of roller for repairs of roads -- Method adopted at Gloucester -- Effect of weight of roller on roads -- Advantages of steam rolling -- Mr. Paget on rolling -- Disadvantages of steam rolling -- Horse rollers 60