Jusserand's Literary History of the English People.
Taine's English Literature.
Courthope's History of English Poetry, 6 vols.
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.