Vol. LVL] Established by Edward L. Yocmans. [No. 1. 



APPLETONS' V 

 POPULAR SCIENCE 

 MONTHLY. 



NOVEMBER, 1899. \^A>- 



EDITED BY WILLIAM JAY YOUMAJ^S. 



CONTENTS. PAG. 



I. The Real Problems of Democracy. Franklin Smith 1 



IL An English University. (Illustrated.) Heebebt Stotesbuey. ... 14 



III. The Wonderful Century. Prof. W. K. Brooks 25 



IV. Spider Bites and " Kissing Bugs." (Illustrated.) L. O. Howaed. 31 

 V. The Mosquito Theory of Malaria. Major Ronald Ross 42 



VI. Food Poisoning. Prof. Victor C. Vaughan 47 



VII. Wireless Telegraphy. (Illustrated.) Prof. John Trowbridge... 59 

 VIIL Emigrant Diamonds in America. (Illustrated.) Prof. William 



Herbert Hobbs 73 



IX. Needed Improvements in Theater Sanitation. W. P. Gerhard, C. E. 84 



X. The New Field Botany. Byron D. Halsted, Sc. D 98 



XI. Do Animals Reason? (Illustrated.) Rev. Egerton R. Young.. 105 



XII. Sketch of George M. Sternberg. (With Portrait.) 116 



XIII. Correspondence : « Do Animals Reason ? " 122 



XIV. Editor's Table : Home Burdens.— Specialization 125 



XV. Scientific Literature 126 



XVI. Fragments of Science 13r 



NEW YORK: 

 D. APPLETON AND COMPANY, 



% 72 fifth avenue. 



Single Number, 50 Cents. Yearly Subscriptioi 



Copyright, 1899, bt D. APPLETON AND COMPANY. 

 Entered at the Post Office at New York, and admitted for transmission tbroogh the maiH at secoil 



York. 



