In lettering titles it is seldom desirable to omit the first part of the title in order to use words which are more distinctive, in other words, to use a binder's title. If it is necessary it should be done with care and discrimination. Ordinarily, give first words, omitting articles. Very long titles must be condensed, sometimes at the expense of clearness.
Proceedings of organizations which meet in different cities should have the name of the place of the meeting lettered in the third panel (Fig. 21).
On periodicals, the author panel is left vacant and the title of the periodical given in full in the second panel. Here it is never permissible to omit first words, except articles. Letter "American review of reviews," not "Review of reviews." In case of foreign periodicals it may be necessary to place a sub-title in the third panel when a periodical is issued in two or more parts and each part bound separately with a distinct title page. With this exception, leave the third panel vacant and letter date and volume number in the fourth panel. Place first the months covered by the volume, followed by the year (Figs. 22 and 23.) Use the first three letters of each month, except June and July, which should be given in full. On foreign periodicals use the English abbreviations for months. If the volume covers the calendar year the months may be omitted (Fig. 24). In the same panel place the volume number beneath the year.
If the periodical has more than one series give dates and total volume number, placing underneath the series number and volume of series (Fig 25).
If the unbound volume of a periodical is too large to be bound in one book, bind it in two volumes and letter the exact months in each part, placing "Part 1" and "Part 2" underneath the volume number (Fig. 26).
If two volumes are bound in one give the inclusive volume numbers (Fig. 27).
In the case of periodicals having more than one series and which are indexed in Poole's index or the Readers' guide, the volume number given first should correspond with the one given in the indexes.
Thin volumes must be lettered lengthwise in the same order as outlined above. Always letter from head to tail. This facilitates reading on the shelves, since shelves are naturally read from left to right. In lettering lengthwise place the book number below the class number, if there is room, if not, after the class number with a hyphen between (Fig. 28).
Oversized books which must be shelved on their sides should also be lettered from head to tail.
If the book is an index complete in itself letter the word "Index" in the fourth panel, followed by the inclusive volume numbers covered by the index (Fig. 29).