APPENDIX 
INTRODUCTORY NOTE 
The numerous important writings of the great naturalist, Eritz 
Muller, who died May 21, 1897, are scattered through a variety of 
publications, some of which are difficult of access. Thus many of 
them are only to be found in the pages of the defunct German 
Kosmos, while many others written in Portuguese appeared in the 
publications of the National Museum of Rio de Janeiro. Ever since 
1897 Dr. A. M oiler, of Eberswalde, has been collecting the materials 
for an exhaustive work, in which all these scattered papers will be 
re-published, together with the letters and life of Charles Darwin’s 
illustrious friend and warm supporter in the great controversies 
which followed the appearance of the Origin of Species in 1859. 
To the results of Dr. Moller’s labours, now all but complete, all 
naturalists are looking with the keenest interest. 
It is probable that, up to the present time, Fritz Muller’s 
writings are best known, and have produced their greatest effect 
in English-speaking countries. This is to be accounted for by his 
speedy entrance into the Darwinian controversy —Fur Darwin 
was published in 1864, and appeared in English in 1869; by his 
important contributions to the problem of Insect Mimicry, a subject 
rendered specially English by the writings of Bates, Wallace, 
Trimen, and Meldola; and by the fact that many of his observations 
were recorded in English, and were published in this country, 
together with others which were translated and given to English 
naturalists by Meldola, almost as soon as they appeared in their 
original form. Thus the brief paper by which Mullerian Mimicry 
became known to the world appeared in Kosmos (p. 100) in 1879, 
and in the same year in the Proceedings of the Entomological Society 
(p. xx). 
