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will contribute to its Welfare, I must re-present to you the Difficulties which Ithink will necessarily attend the Prosecu-tion of what you have required Of mp, andwhich I have endeavoured to acquaint youwith.

i/?. Where is there a proper Person whowill undertake this Affair, who will gothrough with the Labour, and bear theExpence of it? Or, by what other Means,in cafe he is not able, will the Expence ofit be bore ? For I judge it will take up anyone, at least, three or four Years to com-pleat such a Work, and even during those,must his whole Time be intirely engaged ;the surveying Part will in particular bevery tedious*" as well as expensive ; forthough the Surveying five or six Countiesin Wales , and about half the County ofCornwall, will, I think, be sufficient .toestablish such Rules as will answer for theother Parts of the Kingdom ; yet, to exe-cute this in the Manner it ought to be done,will take full two Years.

idly, Should the Government ■ or the’parliament take this Affair into Considera-tion, or any ways be willing to encouragean Undertaking of this Nature, I cannotpretend to set forth in what Manner thisought to be done, because Lead, Tin, Cop-per, and Iron Mines, are private Proper-ties j and how those. Proprietors are to bF 2 brought