In 1963 a number of related collections, including the geology libraries in Kirtland Hall, the geology and paleontology holdings of the Peabody Museum Library, and a selection of geological books from Sterling Memorial Library, were brought together to form the Geology Library. The Library collects materials in the fields of geology, geophysics, geochemistry, paleontology, meteorology, and oceanography. Special collections include most Yale University dissertations on geology after 1963 and a large collection of geological maps, chiefly those published by the U.S. Geological Survey.