Scope and Contents Most of the letters are written from Quarry Hill, Reigate. The letters concern Agnes Robertson’s work in Ethel Sargant’s laboratory in the grounds of her mother’s house, Quarry Hill. A R started working there in 1897 (work which she undertook during the vacations while studying at University College London then Newnham College Cambridge, and for a year after university). In addition to the practical arrangements for and discussion of A R’s work in the laboratory, the subject matter of...