ESSEX PRE-ORNITHOLOGY. 5 Hinton and A. S. Kennard in their Contributions to the Pleis- tocene Geology of the Thames Valley give a full list of the fossils found in the Grays Thurrock district and describe three species of birds. Anser cinereus, Meyer, represented by a left femur preserved in the British Museum: they add that bones of the goose have been obtained likewise from the Pleistocene deposits of Ilford. Cygnus musicus, Bech. Represented by the distal portion of a tibio-tarsus not improbably belonging to this species: it had been presented to the National Collection by Sir Richard Owen. The proximal end of a radius in the same collection is probably referable to this species. Phalacrocorax carbo L., a left ulna bearing the number 36633 in the British Museum catalogue was therein referred to Anser cinereus. The specimen, however, was labelled P. carbo, which the authors believed to be correct. A. Bell, writing in 1915 on the Pleis- tocene and Later Bird Fauna of Great Britain and Ireland includes in his list 137 species. It is unfortunate, speaking from the ornithological point of view, that the author did not more fully introduce the subject for it is difficult to estimate the scope of his paper and be able to make a comparison with the list of sixty species given by Lydekker. Miss D. M. A. Bate is of the opinion that although Bell may have included a number of records from more archaeological deposits than Lydekker, yet a great many additions have been made to the number of later British Pleistocene birds between 1891 and 1915, largely owing to E. T. Newton's careful work. Bell mentions in his list the following ten species, the remains of which have been found in Essex: Osprey (Pandion haliaetus), Peat, Walthamstow; Cormorant (Phalacrocorax carbo L.), Pleistocene, Grays Thur- rock; Grey Lag-Goose (Anser cinereus, Meyer), Pleistocene brick-earths, Grays, Ilford and Lawford; Brent Goose (B. brenta, Pall.), Peat, Walthamstow; Whooper Swan (Cygnus musicus, Bechst.), Pleistocene brick-earths, Grays, Ilford; Mallard (Anas boscas L.), Pleistocene brick-earth deposits, Grays Thurrock, Peat at Walthamstow; Red-breasted Merganser (Mergus serrator L.), Lea Valley; Turkey (Meleagris gallopavo L.), River alluvium, Lea, located in England A.D. 1530; Wan- dering Albatross (Diomedea exulans L.) Pleistocene brick-earth, Ilford (Thames Valley); Red-throated Diver (Colymbus septen- trionalis L.), Sub-Arctic, Lea Valley. With the benefit of Miss