AMERICAN ADDRESSES, WITH A LECTURE ON THE STUDY OF BIOLOGY

by

THOMAS H. HUXLEY.

London: MacMillan and Co.
London: R. Clay, Sons, and Taylor, Printers, Bread Street Hill,
Queen Victoria Street.

1877







"Naturæ leges et regulæ, secundum quas omnia fiunt et ex unis
formis in alias mutantur, sunt ubique et semper eadem."

B. DE SPINOZA, _Ethices_, Pars tertia, Præfatio.





CONTENTS.

I. THREE LECTURES ON EVOLUTION (New York, September 18, 20, 22, 1876).