GW today paid the millwright John Ball the balance of his account, £66 4s. 3d., plus a bonus of 5 guineas. Ball’s total bill, the other part of which had been advanced in installments during August and December, amounted to £101 2s. 6d., including £31 2s. 6d. for the wages of Ball and his five workmen. The remaining £70 covered the cost of several items of mill equipment that Ball sold GW: two pairs of millstones, hoisting gear for lifting barrels of grain and flour to upper floors of the mill, and two bolting chests, devices in which flour was sifted through fine-mesh cloth to separate it from bran and other impurities (General Ledger A description begins General Ledger A, 1750–1772. Library of Congress, George Washington Papers, Series 5, Financial Papers. description ends , folio 324, 333).