Stephens and Lee's _Dictionary of National Biography_ (dead authors).

_New International Cyclopedia_ (living and dead authors).

_English Men of Letters Series_ (abbreviated reference, E.M.L.)

_Great Writers' Series_ (abbreviated reference. G.W.).

Poole's _Index_ (and continuation volumes for reference to critical
articles in periodicals).

_The United States Catalogue_ and _Cumulative Book Index_.

SELECTIONS FROM ENGLISH LITERATURE[2]:

*Pancoast and Spaeth's _Early English Poems_. (P. & S.)[3]

*Warren's _Treasury of English Literature, Part I_. (Origins to
Eleventh Century: London, One Shilling.) (Warren.)

*Ward's _English Poets_, 4 vols. (Ward.)

*Bronson's _English Poems_, 4 vols. (Bronson.)

_Oxford Treasury of English Literature_, Vol. I., _Beowulf to
Jacobean_;

*Vol. II., _Growth of the Drama_; Vol. III., _Jacobean to Victorian_.
(Oxford Treasury.)