CATALOGUE 



OF THE 



Humboldt Library of Science. 



PWce 15 Cents Each Xumher. 



To Subscribers, One Year, (12 Numbers,) SI. 50. 



No. i. LIGHT SCIENCE FOR LEISURE 

 HOURS. A series of familiar es- 

 siys on astronomical and other nat- 

 ural phenomena. 

 By Richard A. Proctor, F.R.A.S. 

 No. 2. THE FORMS OF WATER in Clouds 

 and Rivers, Ice and Glaciers. (19 

 illustrations). 

 By John Tyndall. F.R.S. 

 PHYSICS AND POLITICS. An 

 application of the principles of Nat- 

 ural Science to Political Society. 

 By Walter Bagehot, Author of 



" The English Constitution," 

 MAN'S PLACE IN NATURE, {with 



numerous illustrations.') 

 By Thomas H. Huxley, F.R.S. 

 EDUCATION, Intellectual, Moral 

 and Physical. 

 By Herbert Spencer. 



6. TOWN GEOLOGY. With Appen- 

 dix on Coral and Coral Reefs. 



By Rev. Chas. Kingsley. 



7. THE CONSERVATION OF EN- 

 ERGY, {numerous illustrations). 



By Balfour Stewart, LL.D. 



8. THE STUDY OF LANGUAGES, 

 brought back to its true principles. 



By C. Marcel. 



9. THE DATA OF ETHICS. 

 By Herbert Spencer. 



10. THE THEORY OF SOUND IN 

 ITS RELATION TO MUSIC, {nu- 

 tuerous illustrations). 



By Prof. Pietro Blaserna. 



THE NATURALIST ON THE 



RIVER AMAZONS. A record 



of 1 1 years of travel. 

 By Henry Walter Bates, F.L.S. 



13. MIND AND BODY. The Theories 

 of their Relations. 



By Alex. Bain, LL.D. 



14. THE WONDERS OF THE HEA- 

 VENS, {thirty two illustrations) 



By Camille Flammarion. 



15. LONGEVITY. The means of pro- 

 longing life after middle age. 



By John Gardner, M.D. 



16. THE ORIGIN OF SPECIES. 

 By Thomas H. Huxley, F.R.S. 



17. PROGRESS; ITS LAW AND 

 CAUSE. With other disquisitions. 



By Herbert Spencer. 



18. LESSONS IN ELECTRICITY, 

 {sixty illustrations). 



By John Tyndall, F.R.S. 



19. FAMILIAR ESSAYS ON SCIEN- 

 TIFIC SUBJECTS. 



By Richard A. Proctor. 



No. 3 



No, 4 



-'No. 5 



INo. 



No. 



No. 

 No. 



No. 

 No. 

 No. 



No. 



12. ( 



No. 20. The ROMANCE of ASTRONOMY. 



By R. Kalley Miller, M.A. 

 No. 21. THE PHYSICAL BASIS OF LIFE 

 with ether essays. 

 By Thomas H. Huxley, F.R.S. 

 No. 22. SEEING AND THINKING. 



By Wm. Kingdon Clifford. F.R.S. 

 No. 23. SCIENTIFIC SOPHISMS. A re- 

 view of current theories concerning 

 Atoms, Apes and Men. 

 By Samuel Wainwright, D.D. 

 No. 24. POPULAR SCIENTIFIC LEC- 

 TURES, {illustrated). 

 By Prof. II. Helmholtz. 

 Note. — The preceding numbers are 4to form— like 

 Harpers' Frank/in Square Library. The 

 numbers which follow are 8vo., the size ot 

 Harpers' Monthly. 



No. 25. THE ORIGIN OF NATIONS. 



By Prof. Geo. Rawlinson, Oxf. Univ. 

 No. 26. The EVOLUTIONIST AT LARGE. 



By Grant Allen. 

 No. 27. THE HISTORY OF LAND- 

 HOLDING IN ENGLAND. 

 By Joseph Fisher, F.R.H.S. 

 No. 28. FASHION IN DEFORMITY, as 

 illustrated in the customs of Barba- 

 rous and Civilized Races. {Numer- 

 ous illustrations) . 

 By Wm. Henry Flower, F.R.S. 

 No. 29. FACTS AND FICTIONS OF ZO- 

 OLOGY, {numerous illustrations). 

 By Andrew Wilson, Ph. D. 

 No. 30. f THE STUDY OF WORDS. 

 No. 31. \ By Richard Chenevix Trench. 

 No. 32. HEREDITARY TRAITS, and 

 other essays. 

 By Richard A. Proctor. 

 No. 33. VIGNETTES FROM NATURE. 



By Grant Allen. 

 No. 34. THE PHILOSOPHY OF STYLE. 



By Herbert Spencer. 

 No. 35. ORIENTAL RELIGIONS. 



By JOHN Cairo, and other authors. 

 No. 36. LECTURES ON EVOLUTIO^ 

 {with numerous illustrations). 

 By Thomas H. Huxley. 

 No. 37. SIX LECTURES ON LIGHT, 

 {with numerous illustrations). 

 By John Tyndall, F.R S. 

 No. 3S. \ GEOLOGICAL SKETCHES. 

 No. 39. ] By Archibald Geikie, F. R. S. 



