HAECKEL, ERNEST HE IN RICH

(1834-1919), Ger. biologist; prof. of zool, at Jena. His biological achieves ments lay in two main directions; minute systematic cla ification and general biological philosophy. In the first, he pub. masterly monographs on several divisions of protozoa, sponges, and coelenterates; in the second, propounded his ‘gastraea theory, based upon his ‘fundamental biogenetic law’—that the ontogeny or development of the individual is a recapitulation of the phylogeny or development of the race. This theory has won wide acceptance among naturalists, and though it has undergone some modi-_ fications, still lies at the base of all modern zoological cla ifications. Of Haeckel’s more popular works, his History of Creation (4th Eng. ed. 1892) has been widely read. The Last Link; 1899 contains his final conclusions on the origin and descent of man, as based upon the latest available pal aeon to log i+ cal discoveries. HZEDUI, DUI, Gallic people dwelling between Sadne and Loire; gave allegiance to Julius Caesar.