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Science, New Series, Vol. 103, No. 2672, Mar. 15, 1946


Previous Issue: New Series, Vol. 103, No. 2671, Mar. 8, 1946
Next Issue: New Series, Vol. 103, No. 2673, Mar. 22, 1946


Front Matter (2 pp.)
The Millionth Map of Hispanic America, pp. 319-323
Isaiah Bowman

Congratulatory Address, pp. 323-325
Spruille Braden


Technical Papers
Deposition of Calcium Phosphates Accompanying Senile Degeneration and Disease, p. 326
Clifford Frondel; Edwin L. Prien
Rate of Enzymic Digestion of Proteins as a Factor in Nutrition, pp. 326-329
Daniel Melnick; Bernard L. Oser; Sidney Weiss
A ``Frenching'' Response of Tobacco Seedlings to Isoleucine, pp. 329-330
Robert A. Steinberg
On the Specificity of Epidemic and Murine Typhus, pp. 330-331
Vincent Groupé; Richard Donovick
The Target Area of Mammalian Red Cells, p. 331
Eric Ponder
Soil Nitrogen and Thrips Injury to Spinach, pp. 331-332
S. H. Wittwer; Leonard Haseman


Obituary
D. F. J. Lynch: 1891-1945, p. 332
Joseph T. Hogan


News and Notes, pp. 333-337


In the Laboratory
An Instrument for Determining the Partial Pressure of Oxygen in a Gas, p. 338
Linus Pauling; Reuben E. Wood; J. H. Sturdivant
Quantitative Differentiation of Minute Amounts of the Coproporphyrin Isomers (I and III) Based on Fluorescence Behavior, pp. 338-340
Samuel Schwartz; Violet E. Hawkinson; C. J. Watson
The Use of Ultraviolet Light in Tracing the Course of a Drug through the Body, pp. 340-341
Charles H. Taft
Modification of Metabolism Apparatus, pp. 341-342
W. James Leach


Letters to the Editor
The McDonald Observatory, p. 342
Otto Struve
Museum of Science and Industry, p. 342
Russell H. Anderson
Malaria and Rainfall Periodicity in Palestine, pp. 342-344
Erwin H. Ackerknecht; George F. Carter; H. De Terra
Virus Encephalomyelitis in Buffaloes, pp. 344+346
T. S. Sheng


Book Reviews
----------------, pp. 346-347
Principles of Physics III: Optics
Francis Weston Sears
Review author[s]: John R. Platt
----------------, pp. 347-348
The Chemical Process Industries
R. Norris Shreve
Review author[s]: James M. Church
----------------, p. 348
War Neuroses
Roy R. Grinker; John P. Spiegel
Review author[s]: Addison M. Duval


Scientific Book Register, p. 348

Previous Issue: New Series, Vol. 103, No. 2671, Mar. 8, 1946
Next Issue: New Series, Vol. 103, No. 2673, Mar. 22, 1946



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