"In this inquiry the commissioners can only form an estimate by recurring to the experience of Pennsylvania and Maryland in the business of artificial roads. Upon this data, and a comparison of the grounds and proximity of the materials for covering, there are reasons for belief that, on the route reported, a complete road may be made at an expense not exceeding six thousand dollars per mile, exclusive of bridges over the principal streams on the way. The average expense of the Lancaster, as well as Baltimore and Frederick turnpike, is considerably higher; but it is believed that the convenient supply of stone which the mountain affords will, on those grounds, reduce the expense to the rate here stated.
"As to the policy of incurring this expense, it is not the province of the commissioners to declare; but they cannot, however, withhold assurances of a firm belief that the purse of the nation cannot be more seasonably opened, or more happily applied, than in promoting the speedy and effectual establishment of a great and easy road on the way contemplated.
"In the discharge of all these duties, the
