In Gloucester is the Tailor of Gloucester House -- dedicated to Beatrix Potter, author of The Tailor of Gloucester (for whom the mice save the day) -- said House, not far from the cathedral. Ms. Potter was -- as well as her better-known accomplishments -- a knowledgeable amateur biologist and skilled biological draughtsperson, with particular expertise re things in the "mushroom" realm: biological drawings by her, in that area, are -- and consulted there, by scholars of the subject -- in the Arnitt Museum and Library in Ambleside, Cumbria.