Laboratory notebook containing records for poultry breeding lines W 700-885 (birds which hatched between February and April 1902).

Entries for each bird include notes on colour, comb and other physical characteristics or oddities (e.g. crooked toes), state of health, and cause of death, etc. The entry for bird W 821 includes two drawings of its unusual beak [page 128]. Some birds are marked ‘gone to Edith’ [Edith Rebecca Saunders], e.g. W 789 [page 96] and W 792-793 [pp. 99-100].