These papers consist mainly of records of the Astrophysical Observatory (also abbreviated APO) under the Directorship of Samuel P. Langley, Charles G. Abbot, and Loyal B. Aldrich.
Historical Note
Historical Note
Charles G. Abbot (1872-1973), the fifth Secretary of the Smithsonian Institution, came to the Institution in 1895 as an assistant to Secretary Samuel P. Langley in the Smithsonian Astrophysical Observatory (SAO). In 1906 he was named Director of the Astrophysical Observatory, a position which he held until his retirement in 1944. He became an Assistant Secretary of the Institution in 1918, and served as Secretary from 1928 to 1944. Most of Dr. Abbot's research centered around studies of solar radiation and attempts to determine the relationship between solar variations and the earth's weather.
Notes
Personal Papers
Using the Collection
Prefered Citation
Smithsonian Institution Archives, Record Unit 7005, Charles G. Abbot Papers, and Records of the Smithsonian Astrophysical Observatory