born 28. May 1807 in Haut-Vully; died 14. December 1873 in Cambridge, Mass.; Naturwissenschaftler ; Zoologe ; Glaziologe, Paläontologe ; Geologe ; Prof. Dr.med.
born 27. July 1801 in Alnwick; died 2. January 1892 in Greenwich; Mathematiker ; Astronom, Professor der Astronomie ; Professor der Physik ; Direktor der Sternwarte von Greenwich