THOMAS H. HUXLEY'S WORKS. 

 Collected Essays. 



Vol. I. Method and Results. 

 " 2. Darwiniana. 

 " 3. Science and Education. 

 *' 4. Science and Hebrew Tradition. 

 " 5. Science and Christian Tradition. 

 " 6. Hume. 



" 7. Man's Place in Nature. 

 " 8. Discourses, Biological and Geological. 

 " 9. Evolution and Ethics, and Other 

 Essays. 



i2mo. Cloth, $1.25 per voluine. 



The Crayfish: 



An Introduction to the Study of Zoology. 

 With 82 Illustrations. lamo. Cloth, $1.75. 



Manual of ths Anatomy of Vertebrated 



Animals. Illustrated. 121x10. Cloth, $2.50. 



Manual of the Anatomy of Invertebrated 



Animals. Illustrated. i2mo. Cloth, $2.50. 



Physiography : 



An Introduction to the Study of Nature. With 

 Illustrations and Colored Plates. i2mo. Cloth, $2.50. 



New York : D. APPLETON & CO., 72 Fifth Avenue. 



