Keywords: Herschel sitzend.jpg Sir John Frederick William Herschel 1st Baronet KH March 7 1792 “May 11 1871 was an English mathematician astronomer chemist and experimental photographer/inventor http //www lib utexas edu/photodraw/portraits/index html Duyckinick Evert A Portrait Gallery of Eminent Men and Women in Europe and America New York Johnson Wilson Company 1873 2003-05-23 unknown; originally uploaded to de by Benutzer Stern This image is in the public domain due to its age PD-old John Herschel Sitting people |