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Science, New Series, Vol. 58, No. 1513, Dec. 28, 1923


Previous Issue: New Series, Vol. 58, No. 1512, Dec. 21, 1923
Next Issue: New Series, Vol. 59, No. 1514, Jan. 4, 1924


Front Matter (4 pp.)


The American Association for the Advancement of Science
A Retrospect, pp. 521-531
J. Playfair McMurrich


The Andes in Northern Peru, p. 532
C. H. Eigenmann


Scientific Events
National Parks, pp. 532-533
National Research Fellowships in Physics, Chemistry and Mathematics, p. 533
Vernon Kellogg
Dinner in Honor of Dr. Bohr, pp. 533-534
The Engineers' Testimonial Dinner to Dean Cooley, p. 534
The Medalists of the Royal society, pp. 534-535


Scientific Notes and News, pp. 535-536
University and Educational Notes, pp. 536-537


Discussion and Correspondence
On the Model of the Helium Atom, p. 537
Ralph de Laer Kronig
Plant Lice and Light Exposure, pp. 537-538
S. Marcovitch
The Santa Barbara Skull, p. 538
E. H. Sellards


Scientific Books
----------------, pp. 539-541
Relativity and Modern Physics
G. D. Birkhoff
Review author[s]: L. P. Eisenhart


Special Articles
Some Effects of Insulin and Glucokinin on Maize Seedlings, pp. 541-542
M. M. Ellis; W. H. Eyster
"Vitamin A" Deficiency in Poultry, p. 542
J. R. Beach


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 58, No. 1512, Dec. 21, 1923
Next Issue: New Series, Vol. 59, No. 1514, Jan. 4, 1924



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