Smithsonian Astrophysical Observatory.
Smithsonian Astrophysical Observatory records, 1893-1899.
This record unit consists of correspondence written to Child and Abbot by Samuel P. Langley, Secretary of the Smithsonian and APO Director. The correspondence concerns APO solar constant experiments, especially rules and precepts for photo-bolometric work; facilities, equipment, and apparatus; and APO publications.
Robert C. Child was appointed Assistant in the Astrophysical Observatory (APO) in 1893. In 1894 his title was changed to Aid, Acting in Charge, APO, a position he retained until 1896. Charles G. Abbot joined the APO as an Assistant in 1895. The following year he became Aid, Acting in Charge, APO.
Abbot, C. G. (Charles Greeley), 1872-1973
Smithsonian Astrophysical Observatory.
Astrophysical observatories.
Solar constant -- Experiments.
Rules (instructions). aat
Abbot, C. G. (Charles Greeley), 1872-1973
Child, Robert C.
Langley, S. P. (Samuel Pierpont), 1834-1906.
Smithsonian Astrophysical Observatory.
AIP-ICOS
Smithsonian Institution. Archives. Capital Gallery, Suite 3000, MRC 507, 600 Maryland Avenue SW, Washington, DC 20024-2520, USA