Between May 1930 and August 1935, Dylan Thomas kept numerous notebooks of poems. They contain the drafts of almost all of the work that would form his first two reputation-making collections, 18 Poems (1934) and Twenty-five Poems (1936), and many of those in his third collection, The Map of Love (1939). Thomas sold four of the notebooks, spanning May 1930 to May 1934, to the University of Buffalo in 1941. However, the existence...