That rises up like smoke" and is tracked to a bridge.  
In their essay "Against Theory," Steven Knapp and Walter Benn Michaels imagine a scenario in which one of these writings appears on a beach in the wake of a receding wave.  In one of these, the namesake figure is compared to a "mountain roe" whose feet "disperse the powdery snow / That rises up like smoke" and is tracked to a bridge.  In another, the speaker eyes a "descending moon" while riding a horse to the namesake's "cot," and is struck by the "fond and wayward" thought that she may be dead.  Another says that she "dwelt among th'untrodden ways / Beside the springs of Dove," while another notes that she is "rolled round in earth's diurnal course / With rocks and stones and trees."  FTP, name this group of poems which includes "A slumber did my spirit seal" and "Strange fits of passion have I known," which deal with a mysterious and deceased young woman and were written by William Wordsworth.
In their essay "Against Theory," Steven Knapp and Walter Benn Michaels imagine a scenario in which one of these writings appears on a beach in the wake of a receding wave.  
the Lucy poems (accept "A slumber did my spirit seal" or prompt on "the poems of Wordsworth" before the second sentence)