Vol. LVIII. No. 2. DECEMBER, 1900. 



THE 



POPULAR SCIENCE 

 MONTHLY 



EDITED BY J. McKEEJV CAT TELL. 



CONTENTS = 



Lavoisier Monument Frontispiece 



Oxygen and the Nature of Acids : 



On Dephlogisticated Air : Joseph Priestley. Memoir on the Existence of Air in the 

 Acid of Nitre ; General Considerations on the Nature of Acids : Antoine-Laurent 

 Lavoisier 115 



Chapters on the Stars. Professor Simon Newcomb 130 



Microbes in Cheese-making. Professor H. W. Conn 148 



Submarine Navigation. Professor W. P. Bradley 156 



Municipal Water-works Laboratories. Dr. George C. Whipple.... 172 

 Freedom and ' Free-will.' Professor George Stuart Fullerton . . . 183 

 Chinese Commerce. William Barclay Parsons 193 



Discussion and Correspondence : 



Energy and Work of the Human Body : Professor Edward B. Rosa 208 



Scientific Literature : 



Photography of Solar Eclipses ; Psychology as Literature and Fiction ; Educa- 

 tion 214 



The Progress of Science : 



Lavoisier ; Yellow Fever and Mosquitoes ; Inorganic Ferments ; The Inoculation 

 of Soils ; The Growth of Cities ; The Yale Forestry School ; Forest Reserva- 

 tions ; Prodigies ; Scientific Items 219 



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