For the third edition of this volume a number of changes have been made. These include, author entries for James Macpherson and Thomas Moore have been added, as have additional poems by Anna Laetitia Barbauld, Charlotte Smith, Robert Burns, Joanna Baillie, Mary Robinson, Felicia Hemans, Lord Byron, John Clare, and several others. Blake's Songs of Innocence and of Experience is now included in its entirety.