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Previous Issue: New Series, Vol. 112, No. 2920, Dec. 15, 1950
Next Issue: New Series, Vol. 112, No. 2922, Dec. 29, 1950
The Federal Computing Machine Program, pp. 731-736
- Mina Rees
Building an Effective Technical Library, pp. 736-738
- W. E. Jorgensen; I. G. Carlson
Dennis Robert Hoagland: 1884-1949, pp. 739-742
- Daniel I. Arnon
Technical Papers
- A Thermophobic Insect, p. 743
- R. I. Sailer
- The Effect of Reinforcement History on Extinction after Reconditioning, pp. 743-745
- P. J. Bersh; W. N. Schoenfeld; J. M. Notterman
- Microscopic Structure of Carrot Chromoplasts, pp. 745-748
- Werner Straus
- The Preparation of High-Purity Hydrogen Deuteride, pp. 748-749
- A. Fookson; P. Pomerantz; E. H. Rich
- The Effect of 2,4-D on Potassium Nitrate Levels in Leaves of Sugar Beets, pp. 749-751
- L. M. Stahler; E. I. Whitehead
- An Analysis of the Enzyme Activity of the Conditioned Salivary Response in Human Subjects, p. 751
- Joyce D. Brothers; C. J. Warden
- Spectrophotometric Assay of Ascorbic Acid with Peri-Naphthindanetrione Hydrate, pp. 751-752
- M. S. El Ridi; R. Moubasher; Z. Hassan
- A Method for Evaluating the Relation of Glycogen to Inorganic Salt Deposition in Surviving Cartilage Slices in vitro, pp. 752-754
- Paul A. Marks; Ephraim Shorr
- Plant-Growth Inhibitors from Red Kidney Bean Seeds, pp. 754-755
- S. M. Siegel
- Adjuvant Action of Amino Acids and Peptides in Fertilizin Agglutination of Starfish Sperm, pp. 755-756
- Charles B. Metz; Joanne E. Donovan
- A Simple Method for the Determination of Diffusion Constants, pp. 757-758
- Leonard A. Walker
- On the Question of Hyaluronidase in Sea-Urchin Spermatozoa, p. 759
- Max Krauss
Comments and Communications
- Research Note on Randomization in a Social Experiment, p. 760
- F. Stuart Chapin
- Social Responsibility in Science, pp. 760-761
- William F. Hewitt
- Concerning the Zoological Record, pp. 761-762
- S. A. Neave
Book Reviews
- ----------------, pp. 762-763
- Review author[s]: Victor Guillemin
- ----------------, pp. 763-764
- Les Hautes Temperatures et Leurs Utilisations en Chimie
- P. Lebeau; F. Trombe
- Review author[s]: G. K. Rollefson
- ----------------, p. 764
- The Chordates
- Herbert W. Rand
- Review author[s]: David W. Bishop
- ----------------, pp. 764-766
- Variation and Evolution in Plants
- G. Ledyard Stebbins
- Review author[s]: Carl Epling
Reviewed in Brief
- ----------------, p. 766
- Cell Physiology and Pharmacology
- J. F. Danielli
- ----------------, p. 766
- Pneumoconiosis: Beryllium, Bauxite Fumes, Compensation
- Arthur J. Vorwald
- ----------------, p. 766
- Viruses 1950
- M. Delbrück
Scientific Book Register, p. 766
News and Notes, pp. 767-774
Previous Issue: New Series, Vol. 112, No. 2920, Dec. 15, 1950
Next Issue: New Series, Vol. 112, No. 2922, Dec. 29, 1950