AUTHORITIES CONSULTED. 



Of Published Records the authors believe that compara- 

 tively little has escaped their notice, all available sources of infor- 

 mation, whether natural history journals and publications, or the 

 appendices to topographical works, having been carefully 

 examined. 



The PRINCIPAL DISTRICT-LISTS which have been contributed 

 to the natural history periodicals include Leyland's list of Halifax 

 birds (Loudon's Mag. N.H., 1828), Williamson's note on Scar- 

 borough birds (Proc. Zool. Soc, 1836), Denny's list of animals 

 occurring near Leeds (Ann. & Mag. N.H., 1840), abstracts of 

 Allis's report on the birds, and Meynell's on the fishes of York- 

 shire (Rep. Brit. Ass., 1844), Hogg's 'Catalogue of Birds observed 

 in South-eastern Durham and in North-western Cleveland' (Zool, 

 1845), and Talbot's Birds of Wakefield (Nat, 1876). 



The chief lists which have appeared in or as appendices 

 to topographical works are to be found in Miller's History 

 of Doncaster (1804), Graves' History of Cleveland (1808), 

 Young's History of Whitby (181 7), Whitaker's History of Rich- 

 mondshire (1823), Hinderwell's History of Scarborough (1832), 

 Lankester's Account of Askern (1842), Barker's Three Days of 

 Wensleydale (1854), Hobkirk's History and Natural History of 

 Huddersfield (1859, second edition in 1868), Ferguson's Natural 

 History of Redcar (i860), Theakston's Scarborough Guide (1863 

 and subsequent editions), and Hobson's Life of Charles Waterton 

 (1866). 



In addition to these lists, there are innumerable records in the 

 periodicals and in natural history and topographical works gene- 

 rally, chiefly in the pages of that well-known repertory of infor- 

 mation, the ' Zoologist,' and also in the Ibis, the Field, Land 

 and Water, Loudon's Magazine of Natural History, the 



