The editions of Macaulay are so numerous that it is useless to
attempt to enumerate them. A standard edition was collected in
1866 by his sister, Lady Trevelyan. Four volumes are devoted
to the history and three to the essays and lives of famous
authors which he wrote for the _Encyclopedia Britannica_.
Macaulay's essays, which have enjoyed the greatest popularity
in this country, may be found in many forms. A one-volume
edition, containing the principal essays, is issued by several
publishers. Sir George Otto Trevelyan's _The Life and Letters
of Lord Macaulay_ in two volumes (1876) is a more interesting
biography than Lockhart's _Scott_. The best single-volume
estimate of Macaulay is J. Cotter Morison's _Macaulay_ in the
English Men of Letters series. Good short critical sketches of
Macaulay and his work may be found in Sir Leslie Stephen's
_Hours in a Library_, volume 2, and in Lord Morley's _Critical
Miscellanies_, volume 2.