438 LIFE OF PROFESSOR HUXLEY 



1868, at the request of the late Rev. James Cranbrook ; 

 subsequeutly published in the Forlnujhtly Review.) 

 Lay Sermons ; Collected Essays, i. 



" The Scientific Aspects of Positivism." (A Reply to 

 Mr. Congreve's Attack upon the Preceding Paper. . 

 Published in the Fortnightly Review, 1869.) Lay 

 Sermons. 



" The Genealogy of Animals." (A Review of Haeckel's 

 Natiirliche Schopfungs - Geschichte. The Academy, 

 1869.) Critiques and Addresses; Collected Essays, IL 



" Geological Reform." (The Anniversary Address to the 

 Geological Society for 1869.) Lay Sermons ; Collected 

 Essays, viiL F 



" Scientific Education : Notes of an After-Dinner Speech." 

 (Delivered before the Liverpool Philomathic Society 

 in April 1869, and subsequently published in Mac- 

 millan's Magazine.) Lay Sermons ; Collected Essays, iii. 



" On Descartes' ' Discourse touching the Method of using 

 one's Reason rightly, and of seeking Scientific Truth.' " 

 (An Address to the Cambridge Young Men's Christian 

 Society, delivered on March 24, 1870, and subse- 

 quently published in Macmillan's Magazine.) Lay 

 Sermons; Collected Essays, i. 



"On some Fixed Points in British Ethnology." (The 

 Contemporary Review, July 1870.) Critiques and 

 Addresses; Collected Essays, vii. 



" Biogenesis and Abiogenesis." (The Presidential Address 

 to the British Association for the Advancement of 

 Science, 1870.) Critiques and Addresses; Collected 

 Essays, viii. 



" Paleontology and the Doctrine of Evolution." (The 

 Presidential Address to the Geological Society, 1870.) 

 Critiques and Addresses ; Collected Essays, viii. 



" On Medical Education." (An Address to the Students 

 of the Faculty of Medicine in University College, 

 London, 1870.) Critiques and Addresses; Collected 

 Essays, iii- 



