pylar Science Monthly 



Bfntered in the Post Office in Lancaster, Pa., as second-elass matter. 



CONTENTS OF JULY NUMBER 



Hertzian Wave Wireless Telegraphiy. Pkofessor J. 

 A. Flfming. 



Why a Flame emits Light — the Development of the 

 Theory. Peofessok Robert Montgomkhy Bikd. 



Evolution, Cytology and Mendel's Laws. O. F. Cook. 



The Pearl Fisheries of Ceylon. Professoe W. A. 

 Hkrdman. 



A Comparison of Land and Water Plants. Profes- 

 sor George James Peirce. 



The Preservation of Wild Flowers. Frances Zirn- 



GIEBEL. 



An Unfilled Field in American Agricultural Edu- 

 cation. Ken YON L. Buttkrfield. 



The Story of English Education. J. E. G. de Mont- 

 morency. 



Discussion and Correspondence : 



The Decreasing Size of American Families : C. E. 

 Smith. 



Scientific Literature ; 



Psychology. 



Progress of Science : 



Lord Kelvin on ' Creative Purpose '; Celebrations 

 in honor of Dalton and Liebg; The Americm 

 Museum of Natural History ; The American Phil- 

 osophical Society ; Scientific Items. 



CONTENTS OF AUGUST NUMBER 



Modern Views on Matter. Sir Oliver Lodoe. 



The Training of a Physician. President David 



Starr .Jordan. 



American Titles and Distinctions. Professor W. Le 

 Conte Stevens. 



The Bird Rookeries on the Island of Laysan. Pro- 

 EssoH C. C. Nutting. 



Bacteria in Modern Agriculture. Dr. Albert 

 Schneider. 



The Story of English Education. J. E. G. de Mont- 

 morency. 



The Declining Birth Rate and its Cause. Dr. Fred- 

 erick A. BUSHEE. 



Hertzian Wave Wireless Telegrai^hy. Professor J. 



A. Fleming. 

 Discussion and Correspondence : 



The Birth Rate in Fiction : C. 

 Scientific Literature : 

 Forestry 

 The Progress of Science ; 



The Boston Meeting ot the National Educational 

 Association; Tlie Problem of the CoUt-ge ; The 

 British Antarctic Expedition : The So-called Mos- 

 quito Destroytr; Radium in England ; Tke Frank- 

 lin Papers in tne L:b.ary of the American Philo- 

 sophical Society ; The Educiuion of Engineers ; 

 Scientific Items. 



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