Smithsonian Institution (Washington) (1846-)(2)
Darwin, Charles (1809-1882)(1)
Kelvin, William Thomson (1824-1907)(1)
Kelvin, William Thomson (1824-1907) [vermutlich](1)
Lichtenberg, Georg Christoph (1742-1799)(1)
Royal Cornwall Gazette, Falmouth packet & Plymouth Journal(1)
Sheerness Times-Guardian (Zeitung)(1)