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Science, New Series, Vol. 54, No. 1388, Aug. 5, 1921


Previous Issue: New Series, Vol. 54, No. 1387, Jul. 29, 1921
Next Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921


Front Matter (1 p.)
Parasitism as a Factor in Disease, pp. 99-108
Theobald Smith

The First Appearance of the True Mastodon in America, p. 108
Henry Fairfield Osborn


Scientific Events
The Science Club of the University of Mississippi, pp. 108-109
C. F. De Garis
The Work of the Rockefeller Foundation, p. 109
The Exposition of Chemical Industries, pp. 109-110
The Chemical Meeting in New York City, p. 110


Scientific Notes and News, pp. 111-112
University and Educational News, p. 113


Discussion and Correspondence
A Defense of Professor Newcomb's Logic, p. 113
W. W. Campbell
Biological Control of Destructive Insects, pp. 113-114
Paul Popenoe
A Longlived Woodborer, p. 114
H. E. Jaques


Quotations
The Cost of Printing Scientific Works in England, pp. 114-115


Special Articles
A Bacterial Disease of Gladiolus, pp. 115-116
Lucia McCulloch


The American Chemical Society, pp. 116-118
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1387, Jul. 29, 1921
Next Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921



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