Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... / Smithsonian Institution, United States National Museum.

1922

Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... / Smithsonian Institution, United States National Museum.

1914

Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... / Smithsonian Institution, United States National Museum.

1909

Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... / Smithsonian Institution, United States National Museum.

1907

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.3

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.2