603470 Microscopic images of water (engraving) by English School, (19th century); Private Collection; (add.info.: Page from the Illustrated Times (published on 8 May 1858), with illustrations depicting microscopic images of water: Thames water at Brentford; cistern water, New River, East London; and cistern water, Hampstead, West Middlesex.); Look and Learn / Peter Jackson Collection; English, out of copyright.