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Science, New Series, Vol. 250, No. 4979, Oct. 19, 1990


Previous Issue: New Series, Vol. 250, No. 4978, Oct. 12, 1990
Next Issue: New Series, Vol. 250, No. 4980, Oct. 26, 1990


Front Matter (29 pp.)
Uncertainties About Health Effects of Radon, p. 353
Philip H. Abelson


Letters
Chloral Hydrate Warning, p. 359
Martyn T. Smith
Magnetic Fusion, p. 359
Rush D. Holt; David P. Hamilton
International Journal of Health Services, p. 359
Vincente Navarro
Biotechnology, Human Disease, and the FDA, pp. 359-360
Margaret Mellon
International Congress of Entomology, p. 360
John R. Anderson; John T. Doyen; Marjorie A. Hoy; Carlton Koehler; Rudolph L. Pipa; Lloyd A. Andres; Michael I. Haverty; James B. Hoy; Nancy F. Knop; Paul R. Ehrlich; Matthew Greenstone; Frederick W. Plapp, Jr.; Ye Shuping


Erratum: Structural Transitions Upon Ligand Binding in a Cooperative Dimeric Hemoglobin, p. 360
Erratum: Birth of Projection Neurons in Adult Avian Brain may be Related to Perceptual or Motor Learning, p. 360


News and Comment
The Space Station is Losing Friends, pp. 364-366
M. Mitchell Waldrop
Peer Review: Software for Hard Choices, pp. 367-368
Jeremy Cherfas
Which Patient Did Gallo's Virus Come From?, p. 368
Barbara J. Culliton
AIDS Vaccine Conference: Is "More" Better?, pp. 369-370
Jon Cohen
Another Deep Antarctic Ozone Hole, p. 370
Richard A. Kerr


Briefings
Judd Leaves NIMH, p. 371
Constance Holden
Asian Admissions (Cont.), p. 371
Constance Holden
A Shakeout in R&D?, p. 371
Constance Holden
Spilled Oil Looks Worse on TV, p. 371
Constance Holden


Research News
The Embryo Takes Its Vitamins, pp. 372-373
Michelle Hoffman
Superconductor Race Shifts to a New Arena, pp. 374-375
David P. Hamilton
Our Chimp Cousins Get that Much Closer, p. 376
Ann Gibbons
Geysers or Dust Devils on Triton?, p. 377
Richard A. Kerr
Overcoming Rejection to Win a Nobel Prize, p. 378
Joseph Palca


Perspective
Voyager at Triton, p. 386
Jonathan I. Lunine


The Drug Dilemma: Manipulating the Demand, pp. 387-392
Murray E. Jarvik

Nuclear Decay Techniques in Ion Chemistry, pp. 392-399
Fulvio Cacace

Transport and Storage of Vitamin A, pp. 399-404
Rune Blomhoff; Michael H. Green; Trond Berg; Kaare R. Norum


Research Article
Two Domains of Yeast U6 Small Nuclear RNA Required for Both Steps of Nuclear Precursor Messenger RNA Splicing, pp. 404-409
Patrizia Fabrizio; John Abelson


Reports
Triton's Geyser-Like Plumes: Discovery and Basic Characterization, pp. 410-415
L. A. Soderblom; S. W. Kieffer; T. L. Becker; R. H. Brown; A. F. Cook II; C. J. Hansen; T. V. Johnson; R. L. Kirk; E. M. Shoemaker
Color and Chemistry on Triton, pp. 415-418
W. Reid Thompson; Carl Sagan
Voyager Disk-Integrated Photometry of Triton, pp. 419-421
J. Hillier; P. Helfenstein; A. Verbiscer; J. Veverka; R. H. Brown; J. Goguen; T. V. Johnson
Surface and Airborne Evidence for Plumes and Winds on Triton, pp. 421-424
C. J. Hansen; A. S. McEwen; A. P. Ingersoll; R. J. Terrile
Subsurface Energy Storage and Transport for Solar-Powered Geysers on Triton, pp. 424-429
Randolph L. Kirk; Robert H. Brown; Laurence A. Soderblom
Temperature and Thermal Emissivity of the Surface of Neptune's Satellite Triton, pp. 429-431
Robert M. Nelson; William D. Smythe; Brad D. Wallis; Linda J. Horn; Arthur L. Lane; Marvin J. Mayo
Energy Sources for Triton's Geyser-Like Plumes, pp. 431-435
R. H. Brown; R. L. Kirk; T. V. Johnson; L. A. Soderblom
Triton's Plumes: The Dust Devil Hypothesis, pp. 435-437
Andrew P. Ingersoll; Kimberly A. Tryka
The Impact Cratering Record on Triton, pp. 437-439
Robert G. Strom; Steven K. Croft; Joseph M. Boyce
Scatterers in Triton's Atmosphere: Implications for the Seasonal Volatile Cycle, pp. 440-443
James B. Pollack; Joel M. Schwartz; Kathy Rages


Book Reviews
Physics via France, pp. 450-451
Time Reversal. An Autobiography.
Anatole Abragam
Review author[s]: Alfred Redfield; Silvan Schweber
Water and Global Warming, pp. 451-452
Climate Change and U.S. Water Resources.
Paul E. Waggoner
Review author[s]: Daniel F. Luecke


Back Matter (24 pp.)

Previous Issue: New Series, Vol. 250, No. 4978, Oct. 12, 1990
Next Issue: New Series, Vol. 250, No. 4980, Oct. 26, 1990



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