Baer, Karl Ernst von, a native of Esthonia; professor of zoology, first in Königsberg and then in St. Petersburg; the greatest of modern embryologists, styled the “father of comparative embryology”; the discoverer of the law, known by his name, that the embryo when developing resembles those of successively higher types (1792‒1876).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Baedeker, Karl * Baffin, William