which the road is formed, but is constantly, almost at every step, encountering an obstacle which must either give way and be removed, or the carriage must be lifted by the force of the cattle so as to surmount it; in either case the road is injured, and the carriage impeded, and the injury and impediment will be great in the exact proportion to the number and size of the obstacles."
"The size of stones for a road has been described in contracts in several different ways, sometimes as the size of a hen's egg, sometimes at half a pound weight. These descriptions are very vague, the first being an indefinite size, and the latter depending on the density of the stone used, and neither being attended to in the execution. The size of stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth level surface, this point of contact will be found to be, longitudinally about an inch, and every piece of stone put into a road, which exceeds an inch in any of its dimensions, is mischievous."
"The roads in Scotland are worse than those in England, although, materials are more abundant, of better quality, and labour at least as cheap, and the toll duties are nearly
