DUBLIN UNIVERSITY PRESS SERIES. 



A HISTORY 



OF THE 



THEORIES OF AETHER AND ELECTRICITY 



FKOM THE AGE OF DESCAKTES TO THE CLOSE OF 

 THE NINETEENTH CENTURY. 



BY 



E. T. WH1TTAKER, 



Hon. Sc.D. (DubL}; I.E.S.; Roy at Astronomer of Ireland. 



LONGMANS, GREEN, AND CO., 



39 PATERNOSTER ROW, LONDON, 

 NEW YORK, BOMBAY, AND CALCUTTA. 



HODGES, FIGGIS, & CO., LTD., DUBLIN. 

 1910. 



