Articles

 Alcohol or Humus?

HANS JENNY
Science 25 July 1980: 444.
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 Mathematical "Invasion"

JONATHAN ALPERIN and SAUNDERS MAC LANE
Science 25 July 1980: 444.
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 Keeler's Gap

DONALD E. OSTERBROCK
Science 25 July 1980: 444.
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Erratum

Science 25 July 1980: 444.
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 Regulation and the Universities

DONALD KENNEDY
Science 25 July 1980: 449.
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Water Revisited

Frank H. Stillinger
Science 25 July 1980: 451-457.
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 The phylogeny of prokaryotes

GE Fox, E Stackebrandt, RB Hespell, J Gibson, J Maniloff, TA Dyer, RS Wolfe, WE Balch, RS Tanner, LJ Magrum, LB Zablen, R Blakemore, R Gupta, L Bonen, BJ Lewis, DA Stahl, KR Luehrsen, KN Chen, and CR Woese
Science 25 July 1980: 457-463.
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Seabed Mlinerals and the Law of the Sea

V. E. McKelvey
Science 25 July 1980: 464-472.
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 Making the Multiuniversity More Multiethnic

JOHN WALSH
Science 25 July 1980: 473-475.
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 A Major Minority

JOHN WALSH
Science 25 July 1980: 474.
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 NIH shaken by death of research volunteer

GB Kolata
Science 25 July 1980: 475-476.
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 Industrial Productivity and the "Soft Sciences"

Luther J. Carter
Science 25 July 1980: 476-477.
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 Reversals for Carter Energy Legislation

Luther J. Carter
Science 25 July 1980: 477.
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 Harvard Nuclear Engineer to Chair the NRC

Luther J. Carter
Science 25 July 1980: 477.
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 Behavioral medicine: an emergent field

C Holden
Science 25 July 1980: 479-481.
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 Health committee investigates farm drugs

E Marshall
Science 25 July 1980: 481-482.
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 Changing Global Sea Levels as a Geologic Index

RICHARD A. KERR
Science 25 July 1980: 483-486.
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 The Capacity for Culture

R. HAVEN WILEY
Science 25 July 1980: 487.
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 Vertebrates in Venezuela

BRIAN K. MCNAB
Science 25 July 1980: 488.
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 Peruvian Prehistory

THOMAS F. LYNCH
Science 25 July 1980: 488-489.
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 Magnetosphere and Ionosphere

D. T. FARLEY
Science 25 July 1980: 490.
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 BOOKS RECEIVED

Science 25 July 1980: 490-526.
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Volcanic Contribution of Chlorine to the Stratosphere: More Significant to Ozone Than Previously Estimated?

DAVID A. JOHNSTON
Science 25 July 1980: 491-493.
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N-Formylmethionyl peptide receptors on equine leukocytes initiate secretion but not chemotaxis

R Snyderman and MC Pike
Science 25 July 1980: 493-495.
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Ion Pairing Techniques: Compatibility with On-Line Liquid Chromatography—Mass Spectrometry

D. P. KIRBY, PAUL VOUROS, and B. L. KARGER
Science 25 July 1980: 495-497.
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Human hepatocellular carcinoma cell lines secrete the major plasma proteins and hepatitis B surface antigen

BB Knowles, CC Howe, and DP Aden
Science 25 July 1980: 497-499.
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Cerebral regional oxygen consumption and supply in anesthetized cat

E Buckweitz, AK Sinha, and HR Weiss
Science 25 July 1980: 499-501.
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Multiple Mating-Type Specificities in the Flax Rust Melampsora lini

GREGORY J. LAWRENCE
Science 25 July 1980: 501-503.
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Limitations of metabolic activation systems used with in vitro tests for carcinogens

CA Bigger, JE Tomaszewski, A Dipple, and RS Lake
Science 25 July 1980: 503-505.
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Cell variants showing differential susceptibility to ultraviolet light--induced transformation

T Kakunaga and JD Crow
Science 25 July 1980: 505-507.
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(-)Pentobarbital opens ion channels of long duration in cultured mouse spinal neurons

DA Mathers and JL Barker
Science 25 July 1980: 507-509.
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DDT contamination at Wheeler National Wildlife Refuge

TJ O'Shea, WJ Fleming, and E Cromartie
Science 25 July 1980: 509-560.
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Calcium regulation during stimulus-secretion coupling: continuous measurement of intracellular calcium activities

J O'Doherty, SJ Youmans, WM Armstrong, and RJ Stark
Science 25 July 1980: 510-513.
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Initiation of Sulfate Activation: A Variation in C₄ Photosynthesis Plants

B. C. GERWICK, S. B. KU, and C. C. BLACK
Science 25 July 1980: 513-515.
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Carcinogenic activity of particulate nickel compounds is proportional to their cellular uptake

M Costa and HH Mollenhauer
Science 25 July 1980: 515-517.
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Developmental potential of somatic nuclei transplanted into meiotic oocytes of Rana pipiens

NJ Hoffner and MA DiBerardino
Science 25 July 1980: 517-519.
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Biochemical analysis of human T lymphocyte differentiation antigens T4 and T5

C Terhorst, A van Agthoven, E Reinherz, and S Schlossman
Science 25 July 1980: 520-521.
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Excitatory and inhibitory effects of serotonin on sensorimotor reactivity measured with acoustic startle

M Davis, DI Strachan, and E Kass
Science 25 July 1980: 521-523.
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Female Mate Choice in a Neotropical Frog

MICHAEL J. RYAN
Science 25 July 1980: 523-525.
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