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Previous Issue: New Series, Vol. 113, No. 2940, May 4, 1951
Next Issue: New Series, Vol. 113, No. 2942, May 18, 1951
Front Matter (1 p.)
The New Stem Rust Threat, pp. 3a
- H. A. Rodenhiser; E. G. Moore
The Origins of American Scientists, pp. 543-545
- Robert H. Knapp; Hubert B. Goodrich
Technical Papers
- Observations on Radioactive Snows at Ann Arbor, Michigan, pp. 545-546
- W. Wayne Meinke
- Electromigration in a Cation Exchange Resin, pp. 546-547
- K. S. Spiegler; C. D. Coryell
- A New Electronic Apparatus for the Measurement of the Fusion Frequency of Flicker, pp. 547-549
- Curtis Fritze; Ernst Simonson
- A Method for Preparing Slide Mounts of Small Invertebrates, p. 549
- M. W. Boesel; Charles M. Vaughn
- Roentgen Irradiation of Para-Aminobenzoic Acid Solutions, pp. 549-551
- Peter G. Mar; Ivan C. C. Tchaperoff
- The Decrease of Critical Flicker Frequency with Age, pp. 551-552
- Henryk Misiak
- A Nomogram for the Calculation of Relative Centrifugal Force, pp. 552-553
- V. P. Dole; G. C. Cotzias
- A Laboratory Method for Evaluating the Phytotoxicity or Phytostimulation of Insecticides, pp. 553-555
- J. E. Casida; T. C. Allen
- Excretion of Gallium by the Rat and by Man, pp. 555-557
- E. R. King; Jesse D. Perkinson; H. D. Bruner; Joe Gray
- Inhibitory Action of Adrenalin on Growth of Rat Sarcoma, pp. 557-558
- Margaret Reed Lewis; Paul Myron Aptekman
- Erythrocyte Aggregation Factor in the Plasma and Serum of Patients with Acute Lupus Erythematosus, p. 558
- Emil Maro Schleicher
- Insect Transmission of Western X-Disease of Peaches, pp. 558-559
- H. R. Wolfe; E. W. Anthon; Laurence S. Jones
Comments and Communications
- Demineralization of Hard Tissues by Organic Chelating Agents, p. 560
- Leo M. Sreebny; Gordon Nikiforuk
- Zoological Nomenclature: Notice of Proposed Suspension of the Rules in Certain Cases for the Avoidance of Confusion and the Validation of Current Nomenclatorial Practice (A. (n.s.) 7), pp. 560-561
- Francis Hemming
- Protochemical Cells, pp. 561-562
- Theodore Shedlovsky
Association Affairs
- Association Finances, pp. 563-565
- Howard A. Meyerhoff
- Pacific Division of the American Association for the Advancement of Science, p. 566
- Robert C. Miller
- Laurentian Hormone Conference, p. 566
- Gregory Pincus
- Section E, pp. 566-567
News and Notes, pp. 567-570
Previous Issue: New Series, Vol. 113, No. 2940, May 4, 1951
Next Issue: New Series, Vol. 113, No. 2942, May 18, 1951