TO J.L.A.DE QUATREFAGES.

[Undated] How I should like to know whether Milne Edwards has read the copy which I sent him, and whether he thinks I have made a pretty good case on our side of the question.

There is no naturalist in the world for whose opinion I have so profound a respect.

Of course I am not so silly as to expect to change his opinion.
LETTER 91.

TO C.LYELL.
(91/1.