The volumes provide a record of itemised quarterly bills and petty cash expenses. A division is made between incidental (or household) expenses, expenses relating to the exhibition, and between 1827 and 1854, expenses of the Life School and the School of Painting. Entries relating to the Life School and School of Painting include amounts paid to the male and female models. The male models are named individually 1827-54, and the female models 1831-54.