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Science, New Series, Vol. 29, No. 745, Apr. 9, 1909


Previous Issue: New Series, Vol. 29, No. 744, Apr. 2, 1909
Next Issue: New Series, Vol. 29, No. 746, Apr. 16, 1909


Front Matter (1 p.)


The American Association for the Advancement of Science
Science and Investment, pp. 561-566
John Franklin Crowell


A Plea for Terrestrial and Cosmical Physics, pp. 566-570
L. A. Bauer

Report of the Committee of the American Chemical Society Appointed to Cooperate with the National Conservation Commission, pp. 570-574
F. W. Clarke; H. W. Wiley; C. H. Herty; S. W. Parr; R. B. Dole

Scientific Notes and News, pp. 574-577
University and Educational News, p. 577


Discussion and Correspondence
City Boys Versus Country Boys, pp. 577-579
Frederick Adams Woods


Scientific Books
----------------, pp. 579-580
The Principles of Mechanics for Students of Physics and Engineering
Henry Crew
Review author[s]: A. P. Carman
----------------, p. 580
The Evolution of Forces
Gustave LeBon
Review author[s]: W. S. Franklin
----------------, pp. 580-581
Contribution Toward a Monograph of the Laboulbeniaceae
Roland Thaxter
Review author[s]: Charles E. Bessey
----------------, pp. 581-582
The Loose Leaf System of Laboratory Notes
Theo. H. Scheffer
Review author[s]: C. W. H.
----------------, p. 582
Ergebnisse und Fortschritte der Zoologie--herausgegeben
J. W. Spengel
Review author[s]: Frank R. Lillie


Sir William Ramsay on Transformation of the Elements, pp. 582-583
Poisonous Emanations from Ferrosilicon, pp. 583-584
J. L. H.


Special Articles
The Physiological Significance of Creatin and Creatinin, pp. 584-591
Lafayette B. Mendel


The American Association for the Advancement of Science
Section D--Mechanical Science and Engineering, pp. 591-593
G. W. Bissell


Societies and Academies, pp. 593-600

Previous Issue: New Series, Vol. 29, No. 744, Apr. 2, 1909
Next Issue: New Series, Vol. 29, No. 746, Apr. 16, 1909



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