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Science, New Series, Vol. 113, No. 2929, Feb. 16, 1951


Previous Issue: New Series, Vol. 113, No. 2928, Feb. 9, 1951
Next Issue: New Series, Vol. 113, No. 2930, Feb. 23, 1951


Front Matter (1 p.)
Industrial Noise, pp. 3a
Ralph Martin McGrath

The Status and Development of Biophysics, pp. 169-175
Ralph W. Stacy


Technical Papers
The Physiologic Limits of Vision in Physiographic Observation, pp. 176-177
Elizabeth W. Olmsted; Elizabeth P. Olmsted
Intracellular Localization and Distribution of Carbonic Anhydrase in Plants, pp. 177-179
E. R. Waygood; K. A. Clendenning
Animal Protein Factor for the Rat Present in Crude Casein and Its Relationships with Vitamin B12, pp. 179-181
M. Piccioni; A. Rabbi; G. Moruzzi
A Micro Ball Mill for the Disintegration of Bacteria, p. 181
Carl-Göran Hedén
The Purine and Pyrimidine Content of Three Strains of Escherichia coli, pp. 181-182
A. Marshak
A Simplified Technique for Microelectrocoagulation, pp. 182-184
Mychyle W. Johnson; L. J. Manhoff
Glycogen Storage in the Heart in Experimental Renal Hypertension in the Rat, pp. 184-185
Robert W. Lackey
The Direction of Flow in the Blood Vessels of the Infundibular Stalk, p. 185
Russell J. Barrnett; Roy O. Greep
A Universal Line Graph for Estimating Percentage Potency in Multidose Assays, pp. 185-187
Marion B. Sherwood
Potassium Excretion in Rats, pp. 187-188
S. E. Dicker
Silver Nitrate as a Test for Ortho and Para Dihydric Phenols, p. 188
Bernard S. Wildi


Comments and Communications
Dr. Langmuir's Article on Precipitation Control, pp. 189-192
Ferguson Hall; Gardner Emmons; Bernhard Haurwitz; George P. Wadsworth; Hurd C. Willett


Scientific Book Register, p. 192
News and Notes, pp. 193-196

Previous Issue: New Series, Vol. 113, No. 2928, Feb. 9, 1951
Next Issue: New Series, Vol. 113, No. 2930, Feb. 23, 1951



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