123261968CorporateDNB|944070604LC|n 8817296224Allegheny ObservatoryLCDNBAllegheny Observatoryg:Pittsburgh, Pa.DNBDNB|944070604LC|n 88172962Allegheny ObservatoryLCLC|n 88172962DNB|944070604|ab|un||a|nccna19950206zanUniversity of Pittsburgh.Allegheny ObservatoryLCUniversityAllegheny ObservatoryDNBWestern University of Pennsylvania.Allegheny ObservatoryLCWestern University of Pennsylvania. Allegheny ObservatoryLCUniversity of Pittsburgh. Allegheny ObservatoryLCUniversity Allegheny ObservatoryDNBPittsburgh, Pa.DNBUniversityUeberordnungDNBUniversity UeberordnungDNBPittsburgh, Pa.DNBPublications of the Allegheny Observatory of the University of Pittsburgh.LCDNBReport of the Director of the Allegheny Observatory to the Committee of the Board of the Western University of Pennsylvania.LCUniversity of Pittsburgh Central Print. Office]LCUniversity of Pittsburgh]DNBAllegheny ObservatoryLC00lived191asDNBdsLCUSLCDNBUSDNB