"HOW very interesting! Most attractive and quite unique! I supposed all such old papers had gone long ago. How did you happen to think of such an odd subject, and how ever could you find so many fine old specimens? Do you know where the very first wall-paper was made?"These are faint echoes of the questions suggested by my collection of photographs of wall-papers of the past. The last inquiry, which I was unable to answer, stimulated me to study,...