SCLENCE—ADVERTISEMENTS 
The Popular Science Monthly 
CONTENTS OF THE FEBRUARY NUMBER 
The International Hygiene Exhibition at Dresden. 
Dr. Henry G. Beyer. 
The Value of Non-instrumental Weather Observa- 
tions. Professor Robert DeC. Ward. 
Narrow Jaws and Small Feet. Dr. Richard Cole 
Newton. 
Casita of Administrations. President Frank L. 
McVey. 
Relations of Japan and the United States. President 
David Starr Jordan. 
Some Interesting Characteristics of the Modern Eng- 
lish Language. Professor Alexander Francis 
Chamberlain. 
Old Academy of Science, Paris. Dr. Edward F. 
Williams. 
The History of Gold Mining in the United States. 
Professor R. A. F. Penrose, Jr. 
Modern Tenement Houses. Jonathan A. Rawson, Jr. 
History of Gymnosperms. Professor John M. Coulter. 
The Progress of Science: 
The Washington Meetixg of the American Associa- 
tion ; New College Presidents ; Scientific Items. 
CONTENTS OF THE APRIL NUMBER 
On the Need of Administrative Changes in the Amer- 
jean University. Professor George T. Ladd. 
Science in the Service of Highway Construction. Dr, 
Clifford Richardson. 
The Brooklyn Botanic Garden. Dr. C. Stuart Gager. 
Alexandervon Humboldt. Dr. Edward F. Williams, 
A Review of Three Famous Attacks upon the Study 
of Mathematicsas a Training ofthe Mind. Pro- 
fessor Florian Cajori. 
The Red Sunflower. Professor T. D, A. Cockerell. 
The Medical Side of Immigration, Dr, Alfred G. 
eed. 
Ancient Portalsof the Earth. Professor James Perrin 
mith. 
Ptomaines and Ptomaine Poisoning. Dr. Edwin 
LeFevre. 
Science and International Good Will. J. McKeen 
Cattell, 
The Progress of Science: 
The Rockefeller Institute for Medical Research; 
Exploration and Adventure in the Antarctic; 
Bcientific Items, 
CONTENTS OF THE JUNE NUMBER 
Tropical Sunlight. The Late Dr. Paul C. Freer. 
The National Parks, from the Scientific and Educa- 
tional Side. Laurence F. Schmeckebier. 
Research in Medicine. Professor Richard M. Pearce. 
Age, Death and Conjugation in the Light of Work on 
the Lower Organisms. Professor Herbert 8. 
Jennings, 
Conservation Ideals in the Improvement of Plants. 
Dr, H. J. Webber. 
A Philosophy of Geography. 
Edward McCourt. r 
Chinese Mathematics. Professor David Eugene 
Professor Walter 
mith, 9 
The Practical Basis for Republican Institutions for 
China. Gustavus Ohlinger. 
A Program of Radical Democracy. J. McKeen 
Cattell. 
The Progress of Science: 
Crawford W. Long and the Use of Anesthetics in 
Surgery ; TheSciestific Program of the American 
Philosophical Society; The Foreign-born Popu- 
lation of New York ; Scientific Items. 
Index to Volume LXXX. 
SINGLE NUMBERS 30 CENTS 
CONTENTS OF THE MARCH NUMBER 
Glimpses of the Great American Desert. Professor 
Raymond J. Pool. 
A New Development in the Mississippi Delta. Pro- 
fessor E. W Hilgard. 
The Imperial Universities of Japan. H. Foster Bain. 
Efficiency WageStandards, Professor Scott Nearing. 
The Instinctive Element in Human Society. Pro- 
fessor Charles A. Ellwood. 
Types of Men. Professor S. N. Patten. 
Time and Space. Dr. Charics W. Super. 
Professional Training for Child Hygiene. Professor 
Lewis M. Terman. 
The Four Periods in the Development of the Modern 
Zoological System, Professor H. S. Pratt. 
Florentino Ameghino, Dr. W. D. Matthew. 
The Progress of Science: 
Ten Years of the Carnegie Institution; Lord 
Lister; Scientific Items. 
CONTENTS OF THE MAY NUMBER 
The Kinetic Theory of Matter and the Atomic Theory 
of Electricity. Professor Robert Andrew Millikan. 
University Education in China, Professor Thomas 
T. Read. 
Precession: and the Pyramids. Dr. Percival Lowell. 
New York’s Ten Thousand. William J. Roe. 
Assortative Mating in Man. Dr. J. Arthur Harris. 
The Price Fallacy of High Costs. Dr. Ralph H. Hess. 
A Bugbear of Reformers. Professor T. N. Carver. 
Research in Medicine. Professor Richard M. Pearce. 
The Progress of Science: 
The Centenary of the Academy of Natural 
Sciences of Philadelphia ; Deaths among Ameri- 
can Men of Science ; Scientific Items. 
CONTENTS OF THE JULY NUMBER 
Research in Medicine. Professor Richard M. Pesrce: 
Trinidad and Bermudez Asphalts and Their Use in 
Highway Construction. Clifford Richardson. 
The Role of the House Fly and Certain Other Insects 
i the Spread of Human Diseases. Dr. W. E. 
Tritton. 
Holes inthe Air. Dr. W. J Humphreys. 
abe ehyslological Basis of Esthetics, Dr. Henry 
e 
Are the Jewsa ‘‘Pure Race’? Dr. Abram Lipsky. 
Is a Scientific Explanation of Lifes Possible? Professor 
Otto C. Glaser. 
Some Features of the Root Systems of Desert Plants. 
Dr. W. A. Cannon, 
The Progress of Science: 
The University of Cincinnati and its cooperative 
Engineering Corps; The Activities of the Carnegie 
Foundation for the Advancement of Teaching; 
Scientific Items. 
YEARLY SUBSCRIPTION, $3.00 
THE SCIENCE PRESS 
' SUB-STATION 84; NEW YORK 
