Scope and Contents From the Collection: The records consist of forty-eight series: the Correspondence Series (1905-1974); the Memorandum Series (1907-1934); the Administrative Series (1946-1953) contains all information about expenditures; the General Report Series (1906-1949); the Monthly Report Series (1951-1980) the Annual Report Series (1915-1984); the Weather Record Series (1925-1949); the Special Observers Meteorological Record Series (1911-1937); the Soil Samples & Soil Moisture Series (1926-1968); the Climate...