Here is the listing of titles for the entire series, which span multiple digitization efforts:
Volume 1:
-- #23041 Introduction and Publisher's Advertising
-- #23042 The Tempest
-- #23043 The Two Gentlemen of Verona
-- #23044 The Merry Wives of Windsor
-- #23045 Measure for Measure
-- #23046 The Comedy of Errors

Volume 2: #45128
-- Much Ado About Nothing
-- Love’s Labour’s Lost
-- A Midsummer-Night’s Dream
-- The Merchant of Venice
-- As You Like It

Volume 3: #50559
-- The Taming of The Shrew
-- All's Well That Ends Well
-- Twelfth Night; or, What You Will
-- The Winter's Tale

Volume 4: #50095
-- King John
-- King Richard II.
-- The First Part of King Henry IV.
-- The Second Part of King Henry IV.
-- King Henry V.

Volume 5: #49297
-- The First Part of King Henry VI
-- The Second Part of King Henry VI
-- The Third Part of King Henry VI
-- King Richard III

Volume 6: #49007
-- King Henry VIII
-- Troilus and Cressida
-- Coriolanus
-- Titus Andronicus

Volume 7: #47715
-- Romeo and Juliet
-- Timon of Athens
-- Julius Cæsar
-- Macbeth

Volume 8: #49008
-- Hamlet
-- King Lear
-- Othello

Volume 9: future
-- Antony and Cleopatra
-- Cymbeline
-- Pericles
-- Poems

Wikipedia page about this book: https://en.wikipedia.org/wiki/The_Comedy_of_Errors

Release date is 2007-12-30

Produced by Louise Hope, Jonathan Ingram and the Online
Distributed Proofreading Team at http://www.pgdp.net (This
file was produced from images generously made available
by The Internet Archive/Canadian Libraries)

"The Comedy of Errors" by William Shakespeare is a play written in the early 1590s. Two sets of identical twins are accidentally separated at birth and reunite unknowingly in the city of Ephesus years later. When Antipholus of Syracuse and his servant Dromio arrive in town, they are repeatedly mistaken for their twin brothers who live there. The confusion triggers a chaotic series of mistaken identities, wrongful beatings, accusations of madness, and marital misunderstandings in this farcical comedy of mishaps. (This is an automatically generated summary.)

Original publication data not identified