I am writing a book about the Norwegian-American William Copeland who became a beer pioneer in Japan in the 1870-ies. In 1872 he went to UK, probably London, but maybe other towns as well to learn more about brewing. It's impossible to find out where he actually went. But could anyone help me with suggesting places, people, breweries he might have visited to to learn the latest and best of British brewing at the time? He also got hold of a bottle of bisulphate of calcium/lime to harden the water on the same journey to England. Is it possible to suggest where he got it or to name other breweries who used this to treat the water at the time? He also got some kind of a pamphlet for the same kind of treatment from "a well known chemist in England": Dr. Daighton. Could he be traced? Any attempts to answer anything of this would be highly appreciated.