volume.

One more point deserves notice. Butler often refers in "Life and
Habit" to Darwin's "Variations of Animals and Plants under
Domestication." When he does so it is always under the name "Plants
and Animals." More often still he refers to Darwin's "Origin of
Species by means Natural Selection," terming it at one time "Origin
of Species" and at another "Natural Selection," sometimes, as on p.
278, using both names within a few lines of each other. Butler was
as a rule scrupulously careful about quotations, and I can offer no
explanation of this curious confusion of titles.

R. A. STREATFEILD.
November, 1910.



AUTHOR'S PREFACE



The Italics in the passages quoted in this book are generally mine,
but I found it almost impossible to call the reader's attention to
this upon every occasion. I have done so once or twice, as thinking
it necessary in these cases that there should be no mistake; on the
whole, however, I thought it better to content myself with calling
attention in a preface to the fact that the author quoted is not, as
a general rule, responsible for the Italics.

S. BUTLER.