1st American edition, in excellent condition.Transcripts of several 1876 lectures given by Thomas Huxley, Darwin’s colleague and defender.  Includes transcripts of the following lectures:

"Three lectures on evolution", New York, September 1876

"An address on the occasion of the opening of Johns Hopkins University", Baltimore, September 1876

"A lecture on the study of biology", South Kensington Museum, December 1876

Includes several illustrations supporting the arguments in favor of evolution.