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Previous Issue: New Series, Vol. 105, No. 2739, Jun. 27, 1947
Next Issue: New Series, Vol. 106, No. 2741, Jul. 11, 1947
Volume Information (20 pp.)
Front Matter (2 pp.)
Importance of Ecology in the Training of Engineers, pp. 1-3
- Paul B. Sears
Shift of Employment among Younger Scientists, pp. 3-5
- M. H. Trytten
Financial Reports of the AAAS for 1945, p. 6
- F. R. Moulton
News and Notes, pp. 7-11
Comments by Readers
- Availability and Validity, p. 11
- Invertase, pp. 11-12
- Schizophrenia Strikes 1 or 2 percent of the Population of the United States, p. 12
- The 4th Microbiological Congress, p. 12
Technical Papers
- On the Geochemistry of Columbium, pp. 13-15
- Kalervo Rankama
- Sensitivity of Grasses and Some Crop Plants to Isopropyl-N-Phenyl Carbamate, pp. 15-17
- John W. Mitchell; Paul C. Marth
- Geomagnetic Control of F2 Layer Ionization, p. 17
- Edward Appleton
In the Laboratory
- Improved Cage Designs for Use in Handling Monkeys, pp. 18-19
- Howard F. Brubach
- Acid Phosphatase and Lipids in the Mast Cells of the Rat, p. 19
- William Montagna; Charles R. Noback
- Sulfur Collection in Precipitation by means of an All-Weather Noncorrosive Rain and Snow Gauge, pp. 19-20
- M. I. Fried; M. L. Jackson
Book Reviews
- ----------------, pp. 21-22
- Review author[s]: Karl H. Martzloff
- ----------------, p. 22
- Musical Acoustics
- Charles A. Culver
- Review author[s]: Walter A. Rosenblith
- ----------------, p. 22
- Russian-English Technical and Chemical Dictionary
- Ludmilla Ignatiev Callaham
- Review author[s]: G. M. Kosolapoff
Previous Issue: New Series, Vol. 105, No. 2739, Jun. 27, 1947
Next Issue: New Series, Vol. 106, No. 2741, Jul. 11, 1947