If the author’s real name is known, make the entry under that, with a
reference from the pseudonym; but if the writer is much better known
by the pseudonym, enter under that, with a reference from the real
name. (See note under § 6.)
A phrase—“One who loves his country,” “A friend to peace”—or even a
shorter appellation—“A lawyer”—is not a name. References might be
made from these to the word under which the book is entered, but they
would swell the catalogue and rarely be of use. Appellatives beginning
with the definite article, like “The Prig,” “The Old Shekarry,”
“The Duchess,” are not vague like “A lover of justice,” and when
constantly used should be treated as names in the way either of entry
or reference. Latin phrases, like “Amator patriæ,” should be treated
as names and the entry made under the last word; as, «Patriæ», Amator.
But it should not be made under patronymic adjectives, or certain
words like junior, senior, evidently intended to qualify the name,
not to be taken as the name; _i. e._, the heading for a book “by
Phileleutherus Lipsiensis” would not be «Lipsiensis», Phileleutherus,
but «Phileleutherus» _Lipsiensis_; Vanity Fair Album by Jehu Junior
would go under «Jehu» _junior_, not «Junior», Jehu. In such cases a
reference from the word which is not taken as the heading will be an
additional safeguard.
Pseudonyms like Aunt Jane, Cousin Mary, Uncle John, should be entered
under the second word, although it is evidently not a family name but
a forename; it is all the name that we have.
The word Anonymus may be considered as a pseudonym when used as
follows: “Anonymi introductio in,” etc.
A foreign article beginning a pseudonym used in an English work is
considered as a part of the name; as, «El-Mukattem», _pseud._