We beg to acknowledge the receipt of Mr. Harrison’s letter of the 26th ult. transmitting, by your lordships command, the application of John Loudon MᶜAdam, submitting his claim on account of his inquiries relative to the improvement of the roads in this kingdom, and requesting any information in our power with regard to Mr. MᶜAdam’s services. In conformity to your lordship’s desire, we have applied to the superintendent of mailcoaches, as the officer in our department most competent to give information upon the subject of Mr. MᶜAdam’s exertions; and we beg leave to inclose his report, and to add, that with respect to the road near Staines, to which he alludes, we had found it necessary to give notice of indictment, which has been prevented, by the commissioners resorting to Mr. MᶜAdam’s assistance and advice, which have produced the excellent road mentioned by the superintendent. The road from Newbury, through Reading to Twyford has been so much improved, that the mail-coach has been better enabled to keep its time than heretofore; and we are convinced, that if the roads near London were improved in a similar manner, considerable advantages would be obtained to the correspondence in general, but particularly in places from ninety to one hundred miles distant. We are, with great respect, My Lords, Your Lordships very obedient humble servants, CHICHESTER. SALISBURY. _General Post-office, 20th Dec. 1819._ APPENDIX (D.) Certificate and Recommendation by several Peers and Members of Parliament, to the Right Honourable the Lord Commissioners of the Treasury, respecting Mr. MᶜAdam’s Claim for remuneration. It appears to the undersigned, by the report of a Committee of the House of Commons of last session, and by their own experience and observation, that the system of road making, introduced by Mr. MᶜAdam, has already been of great public benefit, as it facilitates the communications of the country, and affords useful and universal employment to the labouring class, with sufficient funds already provided. The undersigned are of opinion, that as Mr. MᶜAdam obtained the information necessary to perfect his system of road making, entirely at his own expense, and with the labour of many years; and afterwards, by his exertions and those of his family, reduced the system to actual practice, and has now put the public in complete possession of his plans, Mr. MᶜAdam has a claim on the country for remuneration. They are further of opinion, that it will be a great means of encouraging the general adoption of this improved system of road management, if Government shall be pleased to bestow this mark of their approbation on Mr. MᶜAdam.