A LIST OF SOURCES 



"A concise and complete account of the properties 

 of the cathode rays." Nature, June, 1904. 



Electrical Engineer. 



Electrical Magazine. 



Electricity. A weekly journal, published by the Electricity 

 Newspaper Co., New York. Devoted largely to questions 

 of the practical application of electricity, but dealing also 

 with the theoretical side. 



Elements of Electro-magnetic Theory, by S. J. Barnett, Le- 

 land Stanford, Junior, University. Macmillan & Co., 1904. 



(S3-) 



Handbuch der Physik, by Dr. A. Winkelmann, Leipzig, 

 1904. "An indispensable storehouse of expert knowl- 

 edge." Nature, July, 1904. 



HARDIN. 



Rise and Development of the Liquefaction of Gases, 

 New York, 1899. 



La theorie de Maxwell et les oscillations hertziennes, la Tele- 

 graphie sans fit, by H. Poincare, Paris, 1904 (price 2 

 fr.). Interesting studies of light, etc. An interesting 

 brochure. Revue Scientifique , July, 1904. 



Le radium et la radioactivite, by Paul Besson, Paris, 1904 

 (price 2 fr. 75). A good exposition of the known prop- 

 erties of radium, marred, however, by an attempt to 

 put in accord science and religion a propos du radium ! 

 Revue Scientifique, July, 1904. 



Lehrbuch der Physik, by Von O. D. Chwolson, St. Peters- 

 burg, 1904. 2 vols. out. First vol. covers general physics 

 and mechanics. Second vol. sound and radiant energy. 

 "Excellent and quite comprehensive." Science, review. 



PARK, BENJAMIN. 



The Intellectual Rise in Electricity, New York, 1895. 

 This is a popular account of the progress in the field of 

 electricity from Gilbert to Franklin. 



Radium and all About It, by S. Bottone, London, 1904. 

 Published by Whittaker & Co. Price is. "An accurate 

 account of the most important phenomena." Nature, 

 June, 1904. 



The Physical Review. A monthly journal of experimental 

 and theoretical physics. Published for Cornell Uni- 

 versity by the Macmillan Company. 

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