Ferret

* Lewington, John H. (2007). Ferret Husbandry, Medicine and Surgery, 2nd edition, Elsevier. ISBN 9780702028274. * Thomson, P. D. (1951). "A History of the Ferret". Journal of the History of Medicine and Allied Sciences vi... See more » * Lewington, John H. (2007). Ferret Husbandry, Medicine and Surgery, 2nd edition, Elsevier. ISBN 9780702028274. * Thomson, P. D. (1951). "A History of the Ferret". Journal of the History of Medicine and Allied Sciences vi (Autumn): 471–480. doi:10.1093/jhmas/VI.Autumn.471. See less »

...it is ordained that no manner of layman which hath not lands to the value of forty shillings a year (the equivalent of about £1,000 in today's money[15]) shall from henceforth keep any greyhound or other dog to hunt, nor shall...