Harvard University. Students' Astronomical Laboratory.
Harvard University Students' Astronomical Laboratory records, 1900-1938.
Includes correspondence and other records of Robert Wheeler Willson; day book, 1920-1923; and ledgers, 1916-1938.
Instruction in Astronomy was given at the Astronomical Laboratory as well as at the Harvard College Observatory until 1946.
Willson, Robert Wheeler, 1853-1922.
Harvard University -- Students.
Harvard University -- Laboratories.
Daybooks. ftamc
Harvard University -- Astronomy.
AIP-ICOS
Harvard University. Archives. Pusey Library. Cambridge, MA 02138, USA.