Notulae naturae of the Academy of Natural Sciences of Philadelphia.

no.1-100 (1939-42); no.1-100 May 1939-May 1942; no.1-100 1939-1942; no.101-113 1942; no.101-175 1942-1946; no.101-200 July 1942-Dec. 1947; no.101-200 1942-1947; no.114-200 1942-47; no.176-250 1946-1953; no.201-300 1948-57; no.201-300 Jan. 1948-July 1957; no.201-300 1948-1957; no.301-400; no.301-350 1957-61; no.301-350 1957-1961; no.351-362 1962-1963; no.301-372 July 1957-Oct. 1964; no.363-381 1964-1965; no.351-400 1962-1967; no.382-400 1966-1967; no.401-409 1967; no.410-417 1968; no.373-436 1965-1970; no.418-436 1969-1970; no.401-450 1967-1974; no.437-458; no.437-450 1971-1974; no.459-467; no.469-470 Mar. 1988-May 1994; no.471-473 Feb. 1995; no.474 Dec. 2000; no.475 Dec. 2002; no.476 2002; no.477 Dec. 2002; no.478 2003; no.479 Nov. 2005; index NO1-200 1939-1942