By L.S. Klepp
Updated October 30, 1992 at 05:00 AM EST

Despite a long literary career, the Irish writer William Trevor is little known on these shores. If there is justice in the cosmos, Two Lives — two novellas joined in perfect union — will turn the tide. Both Reading Turgenev and My House in Umbria involve memories that haunt and sustain. They are, in a word, perfect. A