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Science, New Series, Vol. 61, No. 1590, Jun. 19, 1925


Previous Issue: New Series, Vol. 61, No. 1589, Jun. 12, 1925
Next Issue: New Series, Vol. 61, No. 1591, Jun. 26, 1925


Front Matter (4 pp.)
Ether-Drift Experiments at Mount Wilson, pp. 617-621
Dayton C. Miller

Risks Incurred in the Introduction of Alien Game Birds, pp. 621-623
Joseph Grinnell


Scientific Events
A National Park in the Belgian Congo, pp. 623-624
The Society for Cultural Relations with Foreign Countries of the Soviet Union, pp. 624-625
The Daniel Guggenheim School of Aeronautics, p. 625
National Research Fellowships in the Biological Sciences, pp. 625-626
Frank R. Lillie


Scientific Notes and News, pp. 626-629
University and Educational Notes, pp. 629-630


Discussion and Correspondence
Bacterial Catalase, p. 630
James Walter McLeod
The Reform of the Calendar, pp. 630-632
Charles Clayton Wylie
The Jonas Viles, Jr., Memorial Scholarship, p. 632
W. C. Curtis


Scientific Books
----------------, pp. 632-634
Arrowsmith
Sinclair Lewis
Review author[s]: Thomas J. LeBlanc


Scientific Apparatus and Laboratory Methods
Heavy Mineral Oil as a Permanent Non-Volatile Preservative for Valuable Biological Material, pp. 634-635
Joseph C. Chamberlin


Special Articles
Arc Spectrum Regularities for Ruthenium, pp. 635-636
W. F. Meggers; O. Laporte
Manganese as a Cure for a Chlorosis of Spinach, pp. 636-637
Forman T. McLean; Basil E. Gilbert


The American Chemical Society
Physical and Inorganic Chemistry, pp. 637-640


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 61, No. 1589, Jun. 12, 1925
Next Issue: New Series, Vol. 61, No. 1591, Jun. 26, 1925



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