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Science, New Series, Vol. 119, No. 3085, Feb. 12, 1954


Previous Issue: New Series, Vol. 119, No. 3084, Feb. 5, 1954
Next Issue: New Series, Vol. 119, No. 3086, Feb. 19, 1954


Front Matter (4 pp.)
Central File of Figures of Insect Types, pp. 3A
E. G. Munroe; P. B. Beirne

A Report on the Present Functions and Operations of the National Bureau of Standards, pp. 195-200
Excitatory Factors in Ventricular Tachycardia Resulting from Myocardial Ischemia. Potassium a Major Excitant, pp. 200-203
A. Sidney Harris; Abdo Bisteni; Raymond A. Russell; John C. Brigham; John E. Firestone

Edwin P. Hubble: 1889-1953, p. 204
I. S. Bowen

News and Notes, pp. 204-211


Technical Papers
Electron Microscopic Study of Spermatozoa, pp. 212-213
S. H. Wu; Fred F. McKenzie
A Fungistatic Substance Extracted from Vitrain, pp. 213-214
Norman C. Schenck; J. C. Carter
A Bacteriostatic Substance Extracted from the Vitrain Ingredient of Coal, pp. 214-217
Robert M. Kosanke
The Growth Regulating Properties of Some β -Naphthylalanines, pp. 217-218
Charles L. Hamner; Theodore L. Rebstock; Harold M. Sell
The Role of Lactones in Flavor Deterioration of Milk Fat, pp. 218-219
Stuart Patton; Philip G. Keeney; Carl T. Herald


Communications
Uptake of Radiozinc by Normal and Diabetic Rat Pancreas, pp. 219-220
J. R. Lowry; R. R. Baldwin; R. V. Harrington
Callus and Shoot Formation from Tomato Roots in vitro, pp. 220-221
Joanne Parker Norton; William G. Boll
Interaction of Chromate with Nucleic Acids in Tissues, p. 221
Heinz Herrmann; Louise B. Speck
Listings of Unpublished Articles, p. 221
Curt Stern


Book Reviews
----------------, p. 222
Advances in Enzymology and Related Subjects of Biochemistry
F. F. Nord
Review author[s]: B. L. Horecker

Previous Issue: New Series, Vol. 119, No. 3084, Feb. 5, 1954
Next Issue: New Series, Vol. 119, No. 3086, Feb. 19, 1954



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