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Science, New Series, Vol. 253, No. 5027, Sep. 27, 1991


Previous Issue: New Series, Vol. 253, No. 5026, Sep. 20, 1991
Next Issue: New Series, Vol. 254, No. 5028, Special Issue: Instrumentation, Oct. 4, 1991


Volume Information (10 pp.)
Front Matter (29 pp.)
Plant Gene Expression Center, p. 1465
Philip H. Abelson


Letters
Declining Amphibians, p. 1467
Andrew R. Blaustein; Deanna H. Olson
Saving Aboriginal DNA, p. 1467
Mark L. Weiss
Homo sapiens' Reproductive Drive, p. 1467
Thomas F. Cravens
Correction: Early Differentiation of the Earth and the Problem of Mantle Siderophile Elements: A New Approach, p. 1467
V. Rama Murthy
Fragile X Gene, p. 1467
Frederick Hecht
Wave of the Future, p. 1468
Norman Tepley; Gregory L. Barkley


ScienceScope, p. 1475
David P. Hamilton


News and Comment
The Disputed Birth of Buckyballs, pp. 1476-1479
Gary Taubes
France Set to Reopen AIDS Pact?, p. 1479
Peter Coles
New Journal Will Publish Without Paper, p. 1480
Joseph Palca
Why Bigger Isn't Better in Earth Observation, pp. 1481-1482
Richard A. Kerr
Allocating the Pain in Energy Science, p. 1482
David P. Hamilton
Healy Uses Wit to Woo NIHers, p. 1483
Joseph Palca
Another Sex Survey Bites the Dust, p. 1483
Anne Simon Moffat


Briefings
Shuttle Souvenirs, p. 1484
Constance Holden
AIDS Parley Site Set, p. 1484
Constance Holden
California v. Genetic Discrimination, p. 1484
Constance Holden
Lasker Awards Return, p. 1484
Constance Holden
Ocean-Slick Yardstick, p. 1484
Constance Holden
Indirect Directions, p. 1485
Constance Holden
Tists in the Hood, p. 1485
Constance Holden
New Awards, p. 1485
Constance Holden
Money for Brains, p. 1485
Constance Holden
Rating University R & D, p. 1485
Constance Holden


Research News
Grand Gamble on Fruit Fly Learning, pp. 1486-1487
David Stipp
Signs of Wet Weather in the Polar Mesosphere?, p. 1488
Richard Stone
Will ``DNA Chip'' Speed Genome Initiative?, p. 1489
Marcia Barinaga
Report Nixes ``Geritol'' Fix for Global Warming, pp. 1490-1491
Leslie Roberts
Space May Be Bad for Your Health, p. 1491
Eliot Marshall
Lightning Found on Venus at Last?, p. 1492
Richard A. Kerr


Perspective
Functional Subunit Structure of Voltage-Gated Calcium Channels, pp. 1499-1500
William A. Catterall


African Populations and the Evolution of Human Mitochondrial DNA, pp. 1503-1507
Linda Vigilant; Mark Stoneking; Henry Harpending; Kristen Hawkes; Allan C. Wilson


Research Article
Radar Images of Mars, pp. 1508-1513
Duane O. Muhleman; Bryan J. Butler; Arie W. Grossman; Martin A. Slade


Reports


Galileo's Encounter with Venus
The Galileo Venus Encounter, pp. 1516-1518
Torrence V. Johnson; Clayne M. Yeates; Richard Young; James Dunne
Magnetic Field Studies of the Solar Wind Interaction with Venus from the Galileo Flyby, pp. 1518-1522
M. G. Kivelson; C. F. Kennel; R. L. McPherron; C. T. Russell; D. J. Southwood; R. J. Walker; C. M. Hammond; K. K. Khurana; R. J. Strangeway; P. J. Coleman
Lightning and Plasma Wave Observations from the Galileo Flyby of Venus, pp. 1522-1525
D. A. Gurnett; W. S. Kurth; A. Roux; R. Gendrin; C. F. Kennel; S. J. Bolton
Energetic Particles at Venus: Galileo Results, pp. 1525-1528
D. J. Williams; R. W. McEntire; S. M. Krimigis; E. C. Roelof; S. Jaskulek; B. Tossman; B. Wilken; W. Stüdemann; T. P. Armstrong; T. A. Fritz; L. J. Lanzerotti; J. G. Roederer
Plasma Observations at Venus with Galileo, pp. 1528-1531
L. A. Frank; W. R. Paterson; K. L. Ackerson; F. V. Coroniti; V. M. Vasyliunas
Images from Galileo of the Venus Cloud Deck, pp. 1531-1536
Michael J. S. Belton; Peter J. Gierasch; Michael D. Smith; Paul Helfenstein; Paul J. Schinder; James B. Pollack; Kathy A. Rages; Andrew P. Ingersoll; Kenneth P. Klaasen; Joseph Veverka; Clifford D. Anger; Michael H. Carr; Clark R. Chapman; Merton E. Davies; Fraser P. Fanale; Ronald Greeley; Richard Greenberg; James W. Head III; David Morrison; Gerhard Neukum; Carl B. Pilcher
Middle Infrared Thermal Maps of Venus at the Time of the Galileo Encounter, pp. 1536-1538
Glenn S. Orton; John Caldwell; A. James Friedson; Terry Z. Martin
Ground-Based Near-Infrared Imaging Observations of Venus During the Galileo Encounter, pp. 1538-1541
D. Crisp; S. McMuldroch; S. K. Stephens; W. M. Sinton; B. Ragent; K.-W. Hodapp; R. G. Probst; L. R. Doyle; D. A. Allen; J. Elias
Galileo Infrared Imaging Spectroscopy Measurements at Venus, pp. 1541-1548
R. W. Carlson; K. H. Baines; Th. Encrenaz; F. W. Taylor; P. Drossart; L. W. Kamp; J. B. Pollack; E. Lellouch; A. D. Collard; S. B. Calcutt; D. Grinspoon; P. R. Weissman; W. D. Smythe; A. C. Ocampo; G. E. Danielson; F. P. Fanale; T. V. Johnson; H. H. Kieffer; D. L. Matson; T. B. McCord; L. A. Soderblom
Galileo Ultraviolet Spectrometer Experiment: Initial Venus and Interplanetary Cruise Results, pp. 1548-1550
C. W. Hord; C. A. Barth; L. W. Esposito; W. E. McClintock; W. R. Pryor; K. E. Simmons; A. I. F. Stewart; G. E. Thomas; J. M. Ajello; A. L. Lane; R. W. West; B. R. Sandel; A. L. Broadfoot; D. M. Hunten; D. E. Shemansky

Transcriptional Repression Mediated by the WT1 Wilms Tumor Gene Product, pp. 1550-1553
Stephen L. Madden; Donna M. Cook; Jennifer F. Morris; Andrea Gashler; Vikas P. Sukhatme; Frank J. Rauscher III
The Roles of the Subunits in the Function of the Calcium Channel, pp. 1553-1557
Dafna Singer; Martin Biel; Ilana Lotan; Veit Flockerzi; Franz Hofmann; Nathan Dascal
Resistance to ddI and Sensitivity to AZT Induced by a Mutation in HIV-1 Reverse Transcriptase, pp. 1557-1559
M. H. St. Clair; J. L. Martin; G. Tudor-Williams; M. C. Bach; C. L. Vavro; D. M. King; P. Kellam; S. D. Kemp; B. A. Larder


Inside AAAS, pp. 1561-1562
Cynthia Lollar


Book Reviews
A Muster of Veterans, pp. 1564-1565
Man and Beast Revisited.
Michael H. Robinson; Lionel Tiger
Review author[s]: Melvin Konner
The Burt Case: Another Foray, pp. 1565-1566
Science, Ideology, and the Media. The Cyril Burt Scandal.
Ronald Fletcher
Review author[s]: Raymond E. Fancher
Books Received, p. 1566


Back Matter (36 pp.)

Previous Issue: New Series, Vol. 253, No. 5026, Sep. 20, 1991
Next Issue: New Series, Vol. 254, No. 5028, Special Issue: Instrumentation, Oct. 4, 1991



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