http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"This volume contains the author's very early verse, first published as "Preludes" and afterwards as 'Poems' (issued in 1893), also the 'Later Poems' (issued in 1901), together with others, since composed, and here first collected."