Notebooks describing experiments on reproduction in rabbits:
 'Rabbits'. Notes, 1914, with loose notes in 2 other hands.
 'Records of experiments with ovaries of rabbits and sows. W.E. Dixon. F.H.A. Marshall. 1923', 1923-24, with loose notes', 1926-27.
 'Rabbits. Electrical stimuli & injection exp[erimen]ts. Dr. Marshall&Dr. Verney', c.1937-39.