Topics include modern theology and philosophy; natural history; antiquarian discoveries and definitions, local history and folklore; travels and voyages; medicine; and music. There are many lengthy musical entries, including a detailed description of the 1783 Grand Jubilee Handel concert and a discussion of early musical notation systems. Identified authors quoted include Bishop Tillotson; Voltaire; Rousseau; Linnaeus; Bougainville; William Stukeley; and William Godwin.