opular Science Monthly 



Entered in the Post Office in Lancaster, Pa., as second-class matter. 



CONTENTS OF THE DECEMBER NUMBER 



Science among the Chinese, Dr. C. K. Edmunds. 



Why do Certain Living Forms Produce Light ? F 

 Alex. McDermott. 



The Water Relations of Desert Plants. Dr. D. T. Mac- 

 Dougal. 



Buffon and the Problem of Species. Profetsor Arthur 

 O. Lovejoy. 



Protozoan Germ Plasm. Professor Gary N. Calkins 



Adamas, or the Symmetries of Isometric Crystals. 

 Professon B. K. Emerson. 



The Lack of Printing in Antiquity. Frederic Drew 

 Bond. 



Is Vegetarianism Capable of World-wide Application ? 

 Professor Alonzo Englebert Taylor. 



A Bugbear of Economics. Professor Herbert Adol- 

 phus Miller. 



The Germans at School. Professor Hugo Miinster- 

 berg. 



The Progress of Science: 



The Stationary Population of France : The Zoo- 

 logical Laboratory of the University of Pennsyl- 

 vania ; Scientific Items. 



Index to Volume LXXIX. 



CONTENTS OF THE JANUARY NUMBER 

 The Mechanistic Conception of Life. Dr. Jacques 



Loeb. 

 Science among the Chinese. Dr. C. K. Edmunds. 

 Notes on Norwegian ludustry. Professor Jas. Lewis 



Howe. 

 The Duties to the Public of Research Institutes in 



Pure Science. Professor William E. Kitter. 

 Small Col leges. Professor John J. Stevenson. 

 The Problem of City Milk Supplies. Da P. G. Heine- 

 man. 

 Collecting on a Coral Reef. Professor Vernon L. 



Kellogg. 

 The Origin and Control of Mental Defectiveness. Dr. 



Chas. B. Davenport. 

 The Paris Academy of Sciences. Dr. Edward F. 



Williams. 

 The Progress of Science : 



The Convocation W^eek Meetings of Scientific 



Societies ; The United States National Museum ; 



Joseph Dalton Hooker ; Scientific Items. 



8^ The MONTHLY will be sent to new subscribers for six months for One Dollar. 



SUBSCRIPTION ORDER 



To THE SCIEJfCE PRESS, 



Publishers of THE POPULAR SCIEXCE MOJ^THLY, 

 Sub-Station 84, J^ew Yorh City. 



Please find enclosed check or money order for three dollars, suhscrip- 

 tion to THE POPULAR SCIEJfCE MONTHLY for one year, beginning 

 February, 1912. 



Please find enclosed from a new subscriber one dollar (sent at your 

 risk), subscription for six months to THE POPULAR SCIEjYCE 

 MOJ^THLY, beginnini February, 1912. 



Kame — 



Address- 



Single Numbers 30 Cents Yearly Subscription, $3.00 



THE SCIENCE PRESS 



Garrison-on-Hudson. N. Y. 



41 North Queen St., Lancaster, Pa. 



Sub-Station 84; NEW YORK 



Press cf The New Era Printjnq Company 



