Radon 1 vol., 1925-1926 Box 9, Folder 91 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Writings, 1902-1947Research Notes
Rays: Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Writings, 1902-1947Lecture Notes
Rays, Beta Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Writings, 1902-1947Research Notes
Rays, Gamma Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Writings, 1902-1947Research Notes
Reprints of obituaries, 1928 Box 1, Folder 8 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Papers, 1914-1931Article by A.F. Kovarik
Research Notes Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Writings, 1902-1947
Research notes concerning Boltwood's research, ancestry, etc., undated Box 1, Folder 5 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Papers, 1914-1931Article by A.F. Kovarik
Roberts, Douglas J., 1934 Box 12, Folder 108 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Additional materialCorrespondence
Ruark, Arthur E., 1933 July 25 Box 12, Folder 108 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Additional materialCorrespondence
Rubey, William Walden, 1898-, 1944 Box 12, Folder 108 Bookmark Collection Context Yale University -Manuscripts and Archives Alois Francis Kovarik papers, 1902-1951Additional materialCorrespondence