hat Dana or any one would
have relied on so small a distinction as grown man not using fore-limbs
for locomotion, seeing that monkeys use their limbs in all other
respects for the same purpose as man. To carry on analogous principles
(for they are not identical, in crustacea the cephalic limbs are brought
close to mouth) from crustacea to the classification of mammals seems
to me madness. Who would dream of making a fundamental distinction in
birds, from fore-limbs not being used at all in [some] birds, or used as
fins in the penguin, and for flight in other birds?

I get on slowly with your grand work, for I am overwhelmed with odds and
ends and letters.

LETTER 163. TO J.D. HOOKER.

(163/1. The following extract refers to Owen's paper in the "Linn. Soc.
Journal," June, 1857, in which the classification of the Mammalia by
cerebral characters was proposed. In spite of the fact that men and apes
are placed in distinct Sub-Classes, Owen speaks (in the foot-note of
which Huxley made such telling effect) of the determination of the
difference between Homo and Pithecus as the anatomist's difficulty. (See
Letter 119.))

July 5th, 1857.

What a capital number of the "Linnean Journal!" Owen's is a grand paper;
but I cannot swallow Man making a division as distinct from a chimpanzee
as an Ornithorhynchus from a horse; I wonder what a chimpanzee would say
to this? (163/2. According to Owen the sub-class Archencephala contains
only the genus Homo: the Gyrencephala contains both chimpanzee and
horse, the Lyencephala contains Ornithorhynchus.)

LETTER 164. TO T.H. HUXLEY. Down [February?] 26th, 1863.

I have just finished with very great interest "Man's Place." (164/1.
"Evidence as to Man's Place in Nature," 1863 (preface dated January
1863).) I never fail to admire the clearness and condensed vigour of
your style, as one calls it, but really of your thought. I have no
criticisms; nor is it likely that I could have. But I think you could
have added some interesting matter on the character or disposition of
the young ourangs which have been kept in France and England. I should
have thought you might have enlarged a little on the later embryological
changes in man and on his rudimentary structure, tail as compared with
tail of higher monkeys, intermaxillary bone, false ribs, and I daresay
other points, such as muscles of ears, etc., etc. I was very much
struck with admiration at the opening pages of Part II. (and oh! what