"When a periodical changes its title, the whole may be catalogued under the original title, with an explanatory note there, and a reference from the new title to the old; or each part may be catalogued under its own title, with references: 'For a continuation see ;' 'For ten previous volumes see .'

"Make a reference from the name of the editor when the periodical is commonly called by his name, as is the case with Silliman's Journal of Science...."

I agree, generally, with this rule, but I think that we must arrange somehow that the whole of a journal should appear in one place in the catalogue, however much the title may have been changed. Thus the title of the well-known Philosophical Magazine has undergone many changes, but all should appear under the heading of "Philosophical Magazine" The first series is known as Tilloch's Philosophical Magazine, and the current series as the London, Edinburgh, and Dublin Philosophical Magazine and Journal.

Although the rule should be to place the titles under the first word not an article, some judgment must be displayed. Thus the New Monthly Magazine should be placed under "New," because it was a rival and not a continuation of the Monthly Magazine; but the Neue Notizen of Froriep must come under "Notizen," of which it is a second series.

As a rule, it is objectionable to place journals under their editors' names, because editors are continually changing. For instance, the famous German scientific journal (Annalen der Physik) which was for so many years associated with the name of Poggendorff no longer bears the name of that distinguished man. After his death his name entirely disappeared from the title-page.

Something must also be said respecting astronomical and meteorological observations, reports of various institutions, surveys, etc. These are not strictly transactions; but the same principle which makes it expedient to take transactions out of the general alphabet applies to these books. Observations are sometimes catalogued under the name of the observer; but this is a bad practice, because the observer changes, and it is only the observatory which is permanent, and this should be arranged under the place where the observatory is situated, as Greenwich, Paris, etc. The treatment of reports is a more difficult matter, and here again judgment must be called into play. A particular report on a special subject must be treated as a book; but the series of reports of commissions, or the annual reports of an institution as serials, may well be brought under a separate division.


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CHAPTER VII.
SOMETHING ABOUT MSS.