The four articles and bibliographies contained in this volume
originally appeared in "The Library."
In connection with the bibliographies, I desire to express cordial
thanks to the authorities and attendants of the British Museum, without
whose courtesy and aid, extending over many weeks, it would have been
impossible to bring together the particulars. Most of the artists, too,
have kindly checked and supplemented the entries relating to their
work, but even with the help given me I cannot hope to have produced
exhaustive lists. My thanks are due to the publishers with whom
arrangements have been made for the use of blocks.