Correspondence with tradesmen, initials A-M, including letters from publishers; booksellers; horologists; printers; builders; merchants; decorators; telescope makers; the Kent Water Company; machine repairers; and the Board of Stamps and Taxes. The letters cover requests; accounts; bills; receipts; tenders; invoices; payments of land taxes; routine repairs; and improvements. There is correspondence with T. Grubb regarding telescope mountings and the proposals, sketches, construction and dispatch of an equatorial telescope for the Royal Observatory. There are also some communications with T. Jones.