[34] ‘The Maintenance of Macadamised Roads,’ by Thomas Codrington, p. 38.
[35, 36] No doubt the price of the machine varies with the price of iron, etc.
[37] Vide ‘Report of the Borough Surveyor of Birmingham to the Paving and Street Improvement Sub-Committee,’ p. 11.
[38] Vide ‘Proceedings of the Association of Municipal and Sanitary Engineers,’ vol. ii. p. 76.
[39] Vide ‘The Maintenance of Macadamised Roadways,’ by Thomas Codrington, p. 41.
[40] Vide ‘Proceedings of the Association of Municipal and Sanitary Engineers,’ vol. ii. p. 82.
[41] Vide ‘The Maintenance of Macadamised Roadways,’ by Thomas Codrington, p. 45.
CHAPTER VII.
ROAD ROLLING.
The march of civilisation has decided that road rolling is a necessity for macadamised roads, instead of allowing the stones of which they are composed to be worn in by the traffic, as was formerly the custom. In Calcutta bullock rollers were used so long ago as the year 1855, and it was the cruelty of this operation that suggested to Mr. W. Clark the necessity for a steam roller,[42] the outcome of which was the well-known roller as manufactured and supplied by Messrs. Aveling and Porter of Rochester, and now so generally used throughout this country, as well as in American and other foreign towns.[43]