How do you keep a friendship intact, when Alzheimer's has stolen the common ground of language, memory, and experience, that unites you? In brief, sharply drawn moments, Sylvia Molloy's Dislocations records the gradual loss of a beloved friend, M.L., a disappearance in ways expected (forgotten names, forgotten moments) and painfully surprising (the reversion to a formal, proper Spanish from their previous shared vernacular)...