German chemist who, in 1864, constructed a periodic table in which the elements were arranged in order of increasing atomic weight and grouped according to their chemical and physical properties. His results were not published until 1870, a year after Mendeléev's. He did not predict the existence of undiscovered elements, but is given partial credit for co-discovering the periodic table.

Beguyer de Chancourtois, Döbereiner, Dumas, Mendeléev, Newlands