Finding Aids to Official Records of the Smithsonian Institution Archives
Record Unit 474
Smithsonian Astrophysical Observatory
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.
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.
This collection is indexed under the following access terms. These are links to collections with related topics, persons or places.
- Child, Robert C.
- Abbot, C. G. (Charles Greeley), 1872-1973
- Langley, S. P. (Samuel Pierpont), 1834-1906
Physical Characteristics of Materials in the Collection
Smithsonian Institution Archives, Record Unit 474, Smithsonian Astrophysical Observatory, Records