I have set down here chiefly those works which I find to be of
_constant_ use in cataloguing. One occasionally needs many more,
even for a short investigation. A complete and systematic view of
bibliographical literature is given in Petzholdt’s “Bibliotheca
bibliographica. Leipzig, 1866,” and many of the more modern works
may be found in Vallée’s Bibliographie des bibliographies, Paris,
1883, and supplement, 1887. Powers’ “Handy-book about books. London,
1870,” contains a useful list, which is reprinted, with additions, in
Sabin’s “American bibliopolist.” C: H. Hull’s “Help’s for cataloguers
in finding full names” in the _Library journal_, Jan., 1889, gives an
excellent classified list with descriptive notes. {129}