Photographer unknown2018-09-212018-09-211920http://172.16.52.76:80/cdm/ref/collection/coll8/id/239https://hdl.handle.net/20.500.12111/1356This series of images of solar flares were presented to Albert Einstein by Oliver Justin Lee (1881-1964). The back of the photograph is inscribed to Einstein by Lee and dated May 6, 1921, which is during Lee's tenure (1910-1926) as instructor, assistant astronomer and lecturer at Yerkes Observatory, Williams Bay, Wisconsin. The series of images, which were taken on October 8, 1920, are numbered 1-7 and include additional details about the photographs: "1. 9:30 a.m. 60,000 km light" and "7. 2:00 p.m. 500,000 km light" and "Last stages at 2:30 pm 831,000 km."B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Solar flaresSeries of solar flaresImage