and Arguments for Darwin, by 
Fritz Muller 
 
Project Gutenberg's Facts and Arguments for Darwin, by Fritz Muller 
Copyright laws are changing all over the world. Be sure to check the 
copyright laws for your country before downloading or redistributing 
this or any other Project Gutenberg eBook. 
This header should be the first thing seen when viewing this Project 
Gutenberg file. Please do not remove it. Do not change or edit the 
header without written permission. 
Please read the "legal small print," and other information about the 
eBook and Project Gutenberg at the bottom of this file. Included is 
important information about your specific rights and restrictions in how 
the file may be used. You can also find out about how to make a 
donation to Project Gutenberg, and how to get involved. 
**Welcome To The World of Free Plain Vanilla Electronic Texts** 
**eBooks Readable By Both Humans and By Computers, Since 
1971** 
*****These eBooks Were Prepared By Thousands of 
Volunteers!***** 
Title: Facts and Arguments for Darwin 
Author: Fritz Muller 
Release Date: September, 2004 [EBook #6475] [Yes, we are more than
one year ahead of schedule] [This file was first posted on December 19, 
2002] 
Edition: 10 
Language: English 
Character set encoding: ASCII 
*** START OF THE PROJECT GUTENBERG EBOOK FACTS 
AND ARGUMENTS FOR DARWIN *** 
 
Produced by Sue Asscher 
[email protected] 
 
FACTS AND ARGUMENTS 
FOR 
DARWIN. 
BY FRITZ MULLER. 
 
WITH ADDITIONS BY THE AUTHOR. 
 
TRANSLATED FROM THE GERMAN 
BY W.S. DALLAS, F.L.S., 
ASSISTANT SECRETARY TO THE GEOLOGICAL SOCIETY OF 
LONDON. 
 
WITH ILLUSTRATIONS.
LONDON: JOHN MURRAY, ALBEMARLE STREET. 1869. 
 
MR. DARWIN'S WORKS. 
A NATURALIST'S VOYAGE ROUND THE WORLD; BEING A 
JOURNAL OF RESEARCHES INTO THE NATURAL HISTORY 
AND GEOLOGY OF COUNTRIES VISITED. Post 8vo. 9 shillings. 
THE ORIGIN OF SPECIES, BY MEANS OF NATURAL 
SELECTION; OR, THE PRESERVATION OF FAVOURED RACES 
IN THE STRUGGLE FOR LIFE. WOODCUTS. Post 8vo. 15 
shillings. 
THE VARIOUS CONTRIVANCES BY WHICH BRITISH AND 
FOREIGN ORCHIDS ARE FERTILISED BY INSECTS, AND ON 
THE GOOD EFFECTS OF INTERCROSSING. Woodcuts, Post 8vo. 9 
shillings. 
THE VARIATION OF ANIMALS AND PLANTS UNDER 
DOMESTICATION. Illustrations. 2 volumes, 8vo. 28 shillings. 
 
TRANSLATOR'S PREFACE. 
My principal reason for undertaking the translation of Dr. Fritz Muller's 
admirable work on the Crustacea, entitled 'Fur Darwin,' was that it was 
still, although published as long ago as 1864, and highly esteemed by 
the author's scientific countrymen, absolutely unknown to a great 
number of English naturalists, including some who have occupied 
themselves more or less specially with the subjects of which it treats. It 
possesses a value quite independent of its reference to Darwinism, due 
to the number of highly interesting and important facts in the natural 
history and particularly the developmental history of the Crustacea, 
which its distinguished author, himself an unwearied and original 
investigator of these matters, has brought together in it. To a
considerable section of English naturalists the tone adopted by the 
author in speaking of one of the greatest of their number will be a 
source of much gratification. 
In granting his permission for the translation of his little book, Dr. Fritz 
Muller kindly offered to send some emendations and additions to 
certain parts of it. His notes included many corrections of printers' 
errors, some of which would have proved unintelligible without his aid, 
some small additions and notes which have been inserted in their 
proper places, and two longer pieces, one forming a footnote near the 
close of 
Chapter 11 
, the other at the end of Chapter 12, describing the probable mode of 
evolution of the Rhizocephala from the Cirripedia. 
Of the execution of the translation I will say but little. My chief object 
in this, as in other cases, has been to furnish, as nearly as possible, a 
literal version of the original, regarding mere elegance of expression as 
of secondary importance in a scientific work. As much of Dr. Muller's 
German does not submit itself to such treatment very readily, I must 
beg his and the reader's indulgence for any imperfections arising from 
this cause. 
W.S.D. 
LONDON, 15TH FEBRUARY, 1869. 
 
AUTHOR'S PREFACE. 
It is not the purpose of the following pages to discuss once more the 
arguments deduced for and against Darwin's theory of the origin of 
species, or to weigh them one against the other. Their object is simply 
to indicate a few facts favourable to this theory, collected upon the 
same South American ground, on which, as Darwin tells us, the idea
first occurred to him of devoting his attention to "the origin of 
species,--that mystery of mysteries." 
It is only by the accumulation of new and valuable material that the 
controversy will gradually be brought into a state fit for final decision, 
and this appears to be for the present of more importance than a 
repeated analysis of what is already