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Science, New Series, Vol. 77, No. 2007, Jun. 16, 1933


Previous Issue: New Series, Vol. 77, No. 2006, Jun. 9, 1933
Next Issue: New Series, Vol. 77, No. 2008, Jun. 23, 1933


Front Matter (2 pp.)
The RĂ´le of Analysis in Scientific Investigation, pp. 569-576
Douglas Johnson


Scientific Events
Unification of Radio Research Facilities in Great Britain, p. 576
The Annual Meeting of the Royal Institution, pp. 576-577
National Research Fellowships in the Biological Sciences, p. 577
Summer Conference in Spectroscopy, pp. 577-578
Psychology at Chicago, p. 578


Scientific Notes and News, pp. 579-581


Discussion
The Problem of Twisted Trees, pp. 581-583
Maurice Copisarow
Chlorpicrin Injurious to Greenhouse Plants, p. 583
G. H. Godfrey
The Anniversary of the Normal Curve, pp. 583-584
Charles J. Marsh
Questions, p. 584
Frederick S. Hammett


Reports
Public Service as an Element in the Life of the American Scientist, pp. 584-585
Yandell Henderson


Scientific Apparatus and Laboratory Methods
A Low-Cost Laboratory Unit for Lighting and Appliances, pp. 585-586
Samuel E. Pond; Otto Meier
A Simple Subsurface Thermometer, pp. 586-587
G. F. Sleggs
A Specimen Mount for Insects and Other Objects of Natural History, Etc., p. 587
Herbert Osborn


Special Articles
The Absolute Motion of the Solar System and the Orbital Motion of the Earth Determined by the Ether-Drift Experiment, pp. 587-588
Dayton C. Miller
The Phosphorescence of Solid Nitrogen and Its Relation to Crystal Structure, pp. 588-589
L. Vegard
Coupled Reactions in Biological Systems, p. 589
Hermann F. Schott; Henry Borsook
Some Aspects of Intermediary Protein Metabolism, pp. 589-590
Erwin Brand; Meyer M. Harris


Science News, pp. 6a-8a

Previous Issue: New Series, Vol. 77, No. 2006, Jun. 9, 1933
Next Issue: New Series, Vol. 77, No. 2008, Jun. 23, 1933



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