The collection consists of the correspondence files of Frederick Hanley Seares. While roughly one half of the papers deal with administrative matters of the Mount Wilson Observatory, the remainder cover his scientific work. There are also some manuscripts, notes and notebooks (Boxes 19-21) related to Seares's research activities.
{Ukrainian SSR Academy of Sciences; USSR Society of Cultural Relations with Foreign Countries [E. Tsubina; I. Korinetz; M. Apletin; E. Leite; M. Milikovsky]; US Civil Service Commission; US Coast and Geodetic Survey; US Customs Service; US Department of Commerce; US Geological Survey; US Naval Observatory; US Shipping Board; US Weather Bureau; Universal Film Manufacturing Co. [M. G. Jonas]; Université Libre de Bruxelles [R. Sedeyn]; University of California at Los Angeles [Frederick C. Leonard]; University of Utah [Junius J. Hayes]; University of Washington Library [W. E. Henry]; Universum Book Export Co., Inc.}
{J. Jackson; Harold Jacoby; Hamilton M. Jeffers; Frank B. Jewett; N. Jewdokimow; Johns Hopkins Press/University; William Templeton Johnson; Robert Jonckheer; T. T. Jones Co.; Frederick C. Jordan; L. V. Julihn [incl ltr F. G. Cottrell ? FHS]; W. Junk, Publishers}
