250 'VARIATION UNDER DOMESTICATION.* [1867. 



the case with some others, for instance, Fritz Miiller. Haeckel 

 paid more than one visit to Down, and these were thoroughly 

 enjoyed by my father. The following letter will serve to 

 show the strong feeling of regard which he entertained for his 

 correspondent — a feeling which I have often heard him em- 

 phatically express, and which was warmly returned. The 

 book referred to is Haeckel's ' Generelle Morphologic,* pub- 

 lished in 1866, a copy of which my father received from the 

 author in January 1867. 



Dr. E. Krause * has given a good account of Professor 

 Haeckel's services to the cause of Evolution. After speak- 

 ing of the lukewarm reception which the ^ Origin' met with 

 in Germany on its first publication, he goes on to describe 

 the first adherents of the new faith as more or less popular 

 writers, not especially likely to advance its acceptance with 

 the professorial or purely scientific world. And he claims for 

 Haeckel that it was his advocacy of Evolution in his ' Radio- 

 laria ' (1862), and at the '' Versammlung " of Naturalists at 

 Stettin in 1863, that placed the Darwinian question for the 

 first time publicly before the forum of German science, and 

 his enthusiastic propagandism that chiefly contributed to its 

 success. 



Mr. Huxley, writing in 1869, paid a high tribute to Pro- 

 fessor Haeckel as the Coryphaeus of the Darwinian move- 

 ment in Germany. Of his * Generelle Morphologic,' " an 

 attempt to work out the practical application" of the doctrine 

 of Evolution to their final results, he says that it has the 

 '' force and suggestiveness, and . . . systematising power 

 of Oken without his extravagance." Professor Huxley also 

 testifies to the value of Haeckel's ' Schopfungs-Geschichte ' as 

 an exposition of the ' Generelle Morphologic ' " for an edu- 

 cated public." 



Again, in his ' Evolution in Biology,' f Mr. Huxley wrote : 



* ' Charles Darwin und sein Verhaltniss zu Deutschland,' 1885. 

 f An article in the ' Encyclopaedia Britannica,' 9th edit., reprinted in 

 'Science and Culture,' 18S1, p. 298. 



