Notebook containing notes on various subjects including the health of Nevil Maskelyne and Margaret Maskelyne's serious illness, many remedies to relieve illness such as colds, chilblains and scurvy, notes on the repair and maintenance of Nevil Maskelyne's watches, notes on his assistants, and notes on observations made. There is also a list of wages paid, a list of silverware, a list of items received from Lieutenant Dawes (mainly astronomical instruments), a shopping list, a list of items 'for going into the country' (including wine, brandy, spare wigs and papers about the Board of Longitude), and directions for coming to the Observatory by carriage,