"The practice in use with us has been to measure the height of the book from the top to the bottom of the page, disregarding the cover. We compute inches as we compute a man's age; a book is eight inches until it is nine inches, only, seeing that bound books are so often cut not quite square, anything short of the number used in the size-notation by the eighth of an inch or less, we call by that number for ordinary purposes. I have said above that in our General Library Catalogue we have reverted to the common form-notation, 8vo, 12mo, etc., but pure size-notation is still retained in other departments, while in Trinity College Library it has never been given up since it was first adopted in 1856 or thereabouts."

The committee referred to by Mr. Bradshaw was the Size-Notation Committee of the Library Association, of which my brother, the late Mr. B. R. Wheatley, was a member. He took great interest in this subject, and drew up a scale of sizes which might be marked upon an ordinary two-foot rule. He was anxious that "a system should be adopted based on the well-known terms hitherto employed of folio, 4to, 8vo, 12mo, etc., and their qualifying varieties of imperial, royal, etc., with an approximate height and width in inches affixed to each size."

I think that Mr. Bradshaw's argument is convincing against making any arbitrary rule of this kind, and affixing a definite size to every variety of form-designation. But at the same time we must remember that the form-notation has very largely been used for a size-notation, and that bibliographers alone cannot make this change, because publishers, booksellers, and bookbinders all use the notation as well as cataloguers. After all I cannot help thinking that the difficulty has been very greatly exaggerated. Folio and quarto are almost entirely used as terms of form-notation, and they are usually found sufficient except in the case of atlas or elephant folios, which seem to require some distinguishing designation. Nowadays a large number of library books are in what is called demy octavo. This I would distinguish as octavo, and all below that size I would call small octavos, and all above large octavos. Very few modern books are styled duodecimos; therefore that form will not give the cataloguer much trouble. It is clearly useless for the latter to distinguish books by such meaningless terms as foolscap octavo, post octavo, etc., like the publisher. Of course there is the difference in size between old and new books. The ordinary octavo of the old books is a smaller size than the modern octavo, but this will be settled by the date, and among the old books there will be no difficulty in finding duodecimos.

Mr. Nicholson has entered very fully into this question of size-notation in his Bodleian Rules, where he gives two tables as guides for correct description. Rule 57 is: "The size of a book printed on water-marked paper is to be described in accordance with Table I., on unwater-marked paper with Table II."

Collation.

In most catalogues the note of the size will finish the entry, but it is a very useful addition when the number of pages of all books in single volumes is given. Sometimes the pages of the book itself only are noted without reference to the preliminary matter, and sometimes the Roman numerals are added on to the Arabic numerals and given as one total; but this latter practice is not to be commended. The best plan is to set down the pages thus—pp. xv, 421 (some put this pp. xv + 421, but the plus sign is not necessary); or if the preliminary matter is not paged, thus—half-title, title, five preliminary leaves, pp. 467.

In the case of very rare and valuable works, a full collation becomes necessary, and such collation should be drawn up according to the plan accepted among bibliographers, which can be seen in the standard bibliographies of early printed books, and such a model bibliography as Upcott's Bibliographical Account of the Principal Works relating to English Topography (3 vols., 8vo, 1818).

Even when it is not thought necessary to give a collation, it will be well to notice if a book contains a portrait, or plates.