Letters, mainly to G.C. Druce as treasurer, of the A. N. H. S., 1903-1916. Papers of the Ashmolean Society, 1828-1901, the Oxfordshire Natural History Society and Field Club (O. N. H. S.), 1880-1901, and the Ashmolean Natural History Society (A. N. H. S.), 1901-84, Dep. c. 654. Bodleian Libraries. https://archives.bodleian.ox.ac.uk//repositories/2/archival_objects/50229 Accessed November 19, 2019.