The Literature of Lesbianism: A Historical Anthology from Ariosto to Stonewall, edited by Terry Castle (Oversized HC, 1106 pages, 2003, $8)
Just in case you were wondering, Stonewall refers to a place, not to the Civil War general.
"From Renaissance love poems to twentieth-century novels, plays, and short stories, The Literature of Lesbianism brings together hundreds of literary works on the subject of female homosexuality. This is not an anthology of 'lesbian writers'. Nor is it simply a one-sided compendium of 'positive' or 'negative' images of lesbian experience. Terry Castle explores the emergence and transformation of the 'idea of lesbianism': its conceptual origins and how it has been transmitted, transformed, and collectively embellished over the past five centuries.
Wow, this is a great book, even though it is really heavy. Look for it in the GLTS section. You can't miss it. It is huge!