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Previous Issue: New Series, Vol. 71, No. 1848, May 30, 1930
Next Issue: New Series, Vol. 71, No. 1850, Jun. 13, 1930
Front Matter (3 pp.)
The Symmetry of Time in Physics, pp. 569-577
- Gilbert N. Lewis
Obituary
- Shosaburo Watasé, pp. 577-578
- F. R. Lillie; Shigeo Yamanouchi
- Recent Deaths, p. 579
Scientific Events
- The Conversaziones of the Royal Society, p. 579
- Research Building of the Mellon Institute, pp. 579-580
- Symposium on the Kidney in Health and Disease, p. 580
- The Pacific Division of the American Association, pp. 580-581
Scientific Notes and News, pp. 581-585
Discussion
- How Old is the Pleistocene?, pp. 585-586
- James A. B. Scherer
- The Future of Taxonomy, p. 586
- T. D. A. Cockerell
- Inactivity of Chicory, p. 586
- Chapman Reynolds
- Can a Catfish Count?, pp. 586-587
- Ida Mellen
Scientific Apparatus and Laboratory Methods
- Recording Cerebral Action Currents, p. 587
- S. H. Bartley; E. B. Newman
- A Convenient Aid in Balancing Centrifuge Tubes, p. 587
- H. W. Estill
The American Association for the Advancement of Science
- The Regular Spring Meeting of the Executive Committee, pp. 588-589
- Burton E. Livingston
Special Articles
- The Structure of Glutathione, pp. 589-590
- Ben H. Nicolet
- Transmission Changes in Ultra-Violet Glasses during High Temperature Exposure to Light, p. 590
- C. C. Nitchie; F. C. Schmutz
Books Received, p. 590
Science News, pp. x+xii
Previous Issue: New Series, Vol. 71, No. 1848, May 30, 1930
Next Issue: New Series, Vol. 71, No. 1850, Jun. 13, 1930