_a._ The number of the imprint (see pp. 292–310: it would have been
better to add the names of the printer and publisher to the bare
reference).
_b._ The date.
_c._ The apparent size of a page of an ordinary uncut copy, according
to the scale,
_for narrow sizes_ _for broad sizes_
in. in.
12–18 folio 12–18 large 4^o
9–12 large 8^o 9–12 4^o
7–9 8^o 7–9 small 4^o
6–7 12^o 6–7 square 12^o
5–6 16^o &c.
4–5 24^o
The number of leaves in a section (quire or gathering) precedes,
within round brackets, when different from what is suggested by the
apparent size: as “(eights) small 4^o.” When it has been desirable to
indicate further the way in which the original sheets of paper have
been folded, the words _single_, _double_, or _treble_ (for once,
twice, or thrice folded) are used on p. 238.
_d._ The number of pages of a perfect copy, in square brackets when
there is no printed pagination, as “pp. [16] + 121 + [9].” When
printed pagination does not occur in the book at all, the signatures
are also given.
_e._ The first words of the 11th page, and of later ones in the case
of a large work, always in italics.
_f._ The common type of the body of the work, followed by the terms
Roman, Italic, or English (i. e. Black-letter): see pp. 291–2.
_g._ The contents. _Every page not mentioned is blank_, without
exception.
3. Notes on the book. A reference to Wood’s ©Athenæ© and ©Fasti
Oxonienses©, as edited by Bliss (1813–20), has been considered as
superseding in most instances any biographical account of the author.
And the limitation of the present work to a bibliography of a press, not
of books connected with the University, has been borne in mind.