xiv CONTENTS. 



CHAPTER XX. 



PHYSICS OF THE NINETEENTH CENTURY ELECTRICITY. 



Page 548 



ALOYSIUS Galvani, 548 Volta, 553 Christian (Ersted, 560 Andr6 Marie 

 Ampere, 563 Francois Arago, 566 The Telegraph, 567 Morse, 570 Baron 

 Schilling, 570 Michael Faraday, 573 Ruhmkorff, 584 Sir William Armstrong, 

 592. 



CHAPTER XXL 



CHEMISTRY OF THE NINETEENTH CENTURY. 



Page 595 



JOHN Dalton, 595 William Higgins, 599 Sir Humphry Davy, 605 Gay- 

 Lussac, 612 Amadeo Avogadro, 613 Jacob Berzelius, 614 Dumas, Laurent, 

 Gerhardt, 616 Wb'hler, 618 Frankland, 619 Justus Von Liebig, 619 Andrews, 

 624 Hofmann, 625 Kekule, 626 Berthelot, 629 The Hydro-Carbons, 630. 



CHAPTER XXII. 



NATURAL HISTORY SCIENCES OF THE NINETEENTH CENTURY ZOOLOGY, 

 BOTANY, GEOLOGY, METEOROLOGY. 



Page 635 



ST. Hilaire, 636 Goethe, 636 Lorenz Oken, 638 Erasmus Darwin, etc., 638 

 .Charles Robert Darv/in, 639 Natural Selection, 634 Alfred Russel Wallace, 

 639 Christian Pander, 643 Von Baer, 643 I^geg-Sea Exploration, 643 Charles 

 Bell, etc., 644 Augustus Pyramus de Candolle, 644 Dr. Bastian, 646 Pasteur, 

 646 Sir Charles Lyell, 648 Agassiz, 648 Meteorology, 650 The^ Barometer, 

 651 Law of Storms, 652 The Thermometer, 654 The Hygrometer, 656 Rain, 

 657 Wind, 658 G. I. Symons, 658. 



CHAPTER XXIII. 



CONCLUDING REMARKS. 



Pa%e 659 



FAILURE of the Ancients in Physical Science, 660 Importance of Verification 

 'n Induction, 660 Arabian and Mediaeval Science, 661 Rapid Progress of Phy- 

 sical Science by Improvements in Instruments and in Mathematics, 662 The 

 Opposition of Science and Theology passing away, 662 The Direct Applications 

 of Science to Every-day Life, 663 Speculative Aspects of Modern Science, 664 

 The Conservation of Energy, 664 Sir W. Thomson and the Dissipation of Energy, 

 666 The Dynamical View of the Universe, 667 Conclusion, 667. 



