I think you have done great service to the principle of evolution, which we both support, by publishing this work.

I am the more glad to read it as I had not time to read Wigand's great and tedious volume.
LETTER 267.

TO CHAUNCEY WRIGHT.

Down, March 13th, 1875.
I write to-day so that there shall be no delay this time in thanking you for your interesting and long letter received this morning.

I am sure that you will excuse brevity when I tell you that I am half-killing myself in trying to get a book ready for the press.