; that I believed the conception of evolution through
natural law so clearly formulated in the 'Vestiges' to be, so far as it
went, a true one; and that I firmly believed that a full and careful
study of the facts of nature would ultimately lead to a solution of the
mystery."--"My Life," i. 254-7.

[18] "On the Law which has regulated the Introduction of
Species."--_Ann. and Mag. of Natural History_, 2nd Series, 1855, xvi.
184.

[19] "Life of Charles Darwin" (one-vol. Edit.), p. 171.

[20] "Life of Charles Darwin," (one-vol. Edit.), p. 40,

[21] _See post_, p. 112.

[22] "My Life," i. 359.

[23] "My Life," i. 361-3.

[24] It will be remembered, that Darwin died in April, 1882, twenty-six
years previously.

[25] "Life and Letters of Charles Darwin," ii. 188.

[26] "The Herbert Spencer Lecture," delivered at the Museum, December 8,
1910. (Clarendon Press, Oxford.)

[27] "My Life," ii. 23-4.

[28] "On the Law which has regulated the Introduction of New
Species."--_Ann. and Mag. of Nat. Hist._, 1855. The law is thus stated
by Wallace: "Every species has come into existence coincident both in
time and space with a pre-existing closely-allied species."

[29] "The Origin of Species."

[30] "The Origin of Species."

[31] First Edit., 1859, pp. 1, 2.

[32] "On the Tendency of Species to form Varieties and on the
Perpetuation of Varieties and Species by Natural Means of Selection." By
C. Darwin and A.R. Wallace. Communicated by Sir C. Lyell and J.D.
Hooker. _Journ. Linn. Soc._, 1859, iii. 45. Read July 1st, 1858.

[33] "On the Law which has regulated the Introduction of New Species."
_Ann. and Mag. of Nat. Hist._, 1855, xvi. 184.

[34] This seems to refer to Wallace's paper on "The Zoological Geography
of the Malay Archipelago," _Journ. Linn. Soc._, 1860.

[35] Dr. Samuel Wilberforce.

[36] Now Major Leonard Darwin.

[37] The last sheet of the letter is missing.

[38] Wallace's paper was entitled "Remarks on the Rev. S. Haughton's
Paper on the Bee's Cells and on the Origin of Species." Prof. Haughton's
paper appeared in the _Ann. and Mag. of Nat. Hist._, 1863, xi. 415.
Wallace's was published in the same journal.

[39] For March, 1864.

[40] _Reader_, April 16, 1864. An abstract of Wallace's paper "On the
Phenomena of Variation and Geographical Distribution, as illustrated by
the Papilionidae of the Malayan Region," _Linn. Soc. Trans._, xxv.

[41] _Anthropolog. Rev._, 1864.

[42] _Nat. Hist. Rev.