References are given, where deemed necessary, from the first word of the title to the name of the society

Journal of the Society of Arts. See Society of
Arts.

Publications such as these, and other technical or scientific periodicals, deserve, and should receive, additional entries under the names of the subjects with which they are mainly concerned, even if the subjects are not indicated by their titles. The building papers, for example, are as much devoted to architecture as to building, and need subject-entries as well as main-entries, thus:—

Architecture:
Periodicals.
Architect, The.
Architectural Review, The.
British Architect, The.
Builder, The.
Building News, The.

So far as the nature of the contents of all these papers goes, they may fitly be entered in the same manner under "Building"—The Architect and The British Architect, having as much to do with building as The Builder and The Building News. To prevent misunderstanding, it may be explained that the mere titles above are given to show the method of entry; the number of volumes, dates of publication, or other particulars must be added in the ordinary way.

Directories, annuals, and other "books which are not books," receive first-word entry as already stated, but a few examples may be cited.

Medical directory, The. 1912926.1
Law list, The. 1913923.4
Crockford's Clerical directory. 1913922
Kelly's Handbook to the titled, landed, and
official classes. 1912923
Statesman's year-book, The; ed. by J. Scott Keltie. 1912310
Whitaker, Joseph. Almanack. 1913310

Of these, the first two hardly need further entries, unless they be under "Doctors" and "Lawyers," the third must be entered under "Clergy," the fourth, though merely a directory of selected names, receives a title-entry, as

Titled, landed, &c. classes, Kelly's Handbook.
1912923