http://books.google.co.uk/books?id=9xgZAAAAYAAJ&dq=%22The+Art+of+Brewing%22,+by+David+Booth&printsec=frontcover#v=onepage&q=berlin&f=false
Page 41, or search for "Berlin" in the small section on the left. Could translate that (to homebrew measurements), or find someone who has if you really...