CHARLOTTESVILLE, Va., Sept. 29 (UPI) -- A graduate student at University of Virginia unearthed a handwritten copy of an unpublished poem by Robert Frost in the university's library.

"War Thoughts at Home," a 35-line poem, was discovered in a box of uncatalogued material, the Richmond (Va.) Times-Dispatch said Friday. The handwritten poem, signed and dated January 1918, was in a copy of "North of Boston," the one-time U.S. poet laureate's second collection of poetry.

The poem is a tribute to one of Frost's friends who died during World War I, the newspaper said.

The student came upon the poem while looking for a research project, the paper said, and rummaged through a collection of Frost material the library recently acquired.

The work will be published in the Virginia Quarterly Review fall edition, the Times-Dispatch said.

Frost, four-time Pulitzer Prize winner, was famous for poems such as "The Road Not Taken" and "The Mending Wall." He died in 1963 at the age of 88.