In her 15th collection, Levertov still stands in firm political opposition to the ``powers and principalities of death'' that ``weigh down the world.'' She is wisely resigned to the fate of the human spirit stuck in the physical world as it awaits the final ``unseen wall, the silence.'' While nature is oblivious and ``the days/ are falling/ . . . abandoned,'' the poet grieves for ``lost rivers,/ poisoned lakesall creatures, perhaps,/ to be fireblasted/off the/ whirling cinder we/loved. . . . '' Although her poems are replete with abstractions, and images and ideas are often strung together with no connections save those that the reader must supply, Levertov remains the consummate wordsmith. A notable addition to an important body of work. Leonard Kniffel, Detroit P.L.