Keywords: Secretary Charles G. Abbot with Bolometric Apparatus.jpg en Charles Greeley Abbot then Acting Director of the Smithsonian Astrophysical Observatory SAO pictured with bolometric apparatus was one of a team of Smithsonian scientists who traveled to Wadesboro North Carolina to study an eclipse of the sun in 1900 Abbot later became director of the SAO and Fifth Secretary 1928-1944 of the Smithsonian 2012-04-11 http //siarchives si edu/collections/siris_sic_9223 author PD-USGov Uploaded with UploadWizard Charles Greeley Abbot 1900 photographs Astronomy in the United States North Carolina Smithsonian Institution Archives |