Haeckel would hardly have existed if Darwin had not existed.
On its relation to Haeckel's biogenetic law, see below, p. 255.
Haeckel's attempt was the most impressive, and swept all before it, for a year or two.
The concept of correlation had simply no meaning for Haeckel.
But where is there mention of the professional colleagues of Haeckel whose testimonies could be taken seriously?
Haeckel had an intense admiration for Goethe's morphological work.
Romanes ranks, as is well known, among the first of Haeckel's authorities.
But seeing that Haeckel was swaying, he turned to Herman Spier.
This has been clearly shown by Haeckel, who has done much towards bringing about a change of opinion in these matters.
The King had passed a bad night, and Haeckel was still missing.
Haeckel Haeck·el (hěk'əl), Ernst. 1834-1919.
German philosopher and naturalist who supported Darwin's theory and mapped a genealogical tree relating all animal life.
German naturalist who was the first to attempt a genealogical tree of all animals. He was also one of the first scientists to publicly support Darwin's theory of evolution. His own ideas about evolution attracted popular attention, and though they were later disproved, they helped to stimulate biological research.