Two first edition books, both hardcovers with dust jackets: Discovery, published by G. P. Putnam's Sons in 1935, signed on a free end page in fountain pen, "R. E. Byrd"; and Alone, published by G. P. Putnam's Sons in 1938, signed on a free end page in fountain pen, "R. E. Byrd." In overall fine condition, with some chips and creases to the dust jackets.