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Science, New Series, Vol. 79, No. 2061, Jun. 29, 1934


Previous Issue: New Series, Vol. 79, No. 2060, Jun. 22, 1934
Next Issue: New Series, Vol. 80, No. 2062, Jul. 6, 1934


Front Matter (1 p.)
Some Beginnings of Specific Differentiation in Plants, pp. 573-578
M. L. Fernald

Development of Our Early Knowledge concerning Magnification, pp. 578-581
William W. Ford


Obituary
Edward M. Shepard: 1854-1934, p. 582
Paul C. Standley


Scientific Events
The Association of German Men of Science and Physicians, p. 583
Program of the National Forest Reservation Commission, pp. 583-584
Cold Spring Harbor Symposia on Quantitative Biology, pp. 584-585
Honorary Degrees at Yale University, pp. 585-586


Scientific Notes and News, pp. 586-589


Discussion
A Rare Specimen of Zea Mays Var. Saccharata, p. 589
A. T. Erwin
A Concept of Colloidal Systems Based on Probability, pp. 589-590
M. Mattikow
The Small Linear Units, pp. 590-591
Glen W. Warner
The Return of Muscular Activity after Paralysis, p. 591
Maynard M. Metcalf


Societies and Meetings
The North Carolina Academy of Science, p. 592
H. L. Blomquist
The New Hampshire Academy of Science, p. 592
George W. White


Scientific Apparatus and Laboratory Methods
A Photo-Electric Colorimeter, p. 593
Arthur Weil
A Simple Ergograph, pp. 593-594
Samuel Soskin


Special Articles
Active Immunization in Monkeys against Poliomyelitis with Germicidally Inactivated Virus, pp. 594-595
Maurice Brodie
Comparing Soil Fungicides with Special Reference to Phymato-Trichum Root Rot, pp. 595-596
Walter N. Ezekiel; J. J. Taubenhaus


Books Received, p. 596
Science News, pp. 5a-7a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 79, No. 2060, Jun. 22, 1934
Next Issue: New Series, Vol. 80, No. 2062, Jul. 6, 1934



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