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Previous Issue: New Series, Vol. 90, No. 2323, Jul. 7, 1939
Next Issue: New Series, Vol. 90, No. 2325, Jul. 21, 1939
Front Matter (3 pp.)
Medals of the National Academy of Sciences
- Presentation of the Daniel Giraud Elliot Medal and Honorarium to Richard Swann Lull, pp. 23-24
- W. B. Scott
- Response by the Medalist, p. 24
- Richard Swann Lull
- Presentation of the Agassiz Medal to Harald Ulrik Sverdrup, pp. 24-26
- T. Wayland Vaughan
- Response by the Medalist, pp. 26-27
- Harald Ulrik Sverdrup
The Changing Outlook of Engineering Science, pp. 27-30
- R. V. Southwell
Scientific Events
- Scholarship Awards of the Canadian National Research Council, p. 30
- The Permanent Science Fund of the American Academy of Arts and Sciences, pp. 30-31
- Awards from the Milton Fund of Harvard University, p. 31
- Winter School in Soil Science at the Waite Institute, pp. 31-32
- The Field Program of the National Museum of Canada, p. 32
- Symposium on Growth and Development, p. 32
- Summer Meetings of Mathematicians, pp. 32-33
Scientific Notes and News, pp. 33-35
Discussion
- The Luminescence of Sugar Wafers, pp. 35-36
- E. Newton Harvey
- Heparin and the Inhibition of Blood-Clotting, p. 36
- Tage Astrup
- Boron as a Fertilizer for Western Oregon Soils, pp. 36-37
- W. L. Powers
Societies and Meetings
- The Annual Meeting of the Southwestern Division of the American Association for the Advancement of Science, p. 38
- Veon C. Kiech
- A Symposium on Metric Geometry, pp. 38-39
- Karl Menger
Reports
- Tryparsamide in the Control of African Sleeping Sickness, pp. 39-40
- Louise Pearce
Special Articles
- Effect of Indole-3-Acetic Acid on Photosynthesis, p. 41
- N. G. Cholodny; A. G. Gorbovsky
- Growth of Some Hemolytic Streptococci on a Chemically Defined Medium, pp. 41-42
- Brian L. Hutchings; D. W. Woolley
- The Pseudo-Amnion, Pseudo-Chorion, Pseudo-Placenta and Other Foetal Structures in Viviparous Cyprinodont Fishes, pp. 42-43
- C. L. Turner
Scientific Apparatus and Laboratory Methods
- A Thoracic Window for Observation of the Lung in a Living Animal, pp. 43-44
- Robert J. Terry
Science News, pp. 6-8
Previous Issue: New Series, Vol. 90, No. 2323, Jul. 7, 1939
Next Issue: New Series, Vol. 90, No. 2325, Jul. 21, 1939