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Science, New Series, Vol. 90, No. 2326, Jul. 28, 1939


Previous Issue: New Series, Vol. 90, No. 2325, Jul. 21, 1939
Next Issue: New Series, Vol. 90, No. 2327, Aug. 4, 1939


Front Matter (2 pp.)
Dedication of the William Albert Noyes Laboratory of Chemistry at the University of Illinois, pp. 71-75
Roger Adams


Obituary
Joseph Grinnell, pp. 75-76
Wm. E. Ritter
Recent Deaths and Memorials, p. 76


Scientific Events
Transfer of the Bureau of Fisheries, p. 76
Reorganization of the Work in Zoology at Cornell University, pp. 76-77
Grants of the National Tuberculosis Association, p. 77
Guggenheim Fellowships for Brazil, Canada, Peru and Uruguay, pp. 77-78
American Ornithologists' Union, pp. 78-79


Scientific Notes and News, pp. 79-81


Discussion
Present-Day Botany in Italy, p. 81
Francis Ramaley
The Production of Unfertilized Seeds in Trillium, pp. 81-82
Edward C. Jeffrey; Edwin J. Haertl
The Role of Arrhenotoky in the Adaptation of Insects, p. 82
Stanley E. Flanders
Mottled Enamel in Rat Molars, p. 83
Gerald J. Cox; Margaret C. Matuschak; Sara F. Dixon; W. E. Walker


Quotations
The Need for Extension of Membership of the British Association for the Advancement of Science, pp. 83-84


Scientific Books
Popularization of Modern Science, pp. 84-85
The Wisdom of the Body
Walter B. Cannon
The Science of Health and Disease: A Text-Book of Physiology and Hygiene
Howard W. Haggard
The Stuff We're Made of
W. O. Kermack; P. Eggleton
You're the Doctor
Victor Heiser
Health, Hygiene and Hooey
W. W. Bauer
Review author[s]: Chauncey D. Leake


Reports
Astronomical Symposium on Galactic and Extragalactic Structure, pp. 85-88
Otto Struve


Special Articles
Linkage of Pea Comb and Blue Egg in the Fowl, p. 88
J. H. Bruckner; F. B. Hutt
Role of Vitamin E in the Prevention of Muscular Dystrophy in Guinea Pigs Reared on Synthetic Rations, p. 89
Nobuko Shimotori; Gladys A. Emerson; Herbert M. Evans
A Quantitative Study of Meaning by a Conditioned Salivary Technique (Semantic Conditioning), pp. 89-90
G. H. S. Razran
The Gelatin of Brom Phenol Blue, pp. 90-91
Edward S. Amis; Victor K. LaMer


Scientific Apparatus and Laboratory Methods
A Practical Method of Obtaining Bacteria-Free Cultures of Trichomonas Hominis, pp. 91-92
Wm. S. Stone; Francois H. K. Reynolds
The Use of the Horsley-Clarke Instrument on the Rat, p. 92
George Clark


Books Received, p. 92
Science News, pp. 6a+7a+8a

Previous Issue: New Series, Vol. 90, No. 2325, Jul. 21, 1939
Next Issue: New Series, Vol. 90, No. 2327, Aug. 4, 1939



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