| | Opinion |  |
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| | Slamming the Wrong Stable Door ? 479
doi:10.1038/231479a0
PDF (250K)
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| | Making Virtue of Necessity 480
doi:10.1038/231480a0
PDF (259K)
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| | 100 Years Ago 481
doi:10.1038/231481a0
PDF (136K)
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| | Old World | |
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| | Box Girder Bridges: Under Surveillance 482
doi:10.1038/231482a0
PDF (125K)
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| | Telecommunications: Post Office Goes Dutch 482
doi:10.1038/231482b0
PDF (125K)
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| | New World | |
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| | Conflicting Philosophies over 2,4,5-T 483
Our Washington Correspondent
doi:10.1038/231483a0
PDF (387K)
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| | Scientologists: FDA Out for a Church 485
Our Washington Correspondent
doi:10.1038/231485a0
PDF (265K)
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| | Universities: Entrepreneurs Win Out 486
Our Washington Correspondent
doi:10.1038/231486a0
PDF (133K)
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| | Science Administration: NSF Staff Out of Touch ? 486
Our Washington Correspondent
doi:10.1038/231486b0
PDF (133K)
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| | News and Views |  |
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| | A Worldwide Marker for the Precambrian ? 487
doi:10.1038/231487a0
PDF (126K)
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| | Regulating the Expression of Malignancy 488
doi:10.1038/231488a0
PDF (132K)
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| | Ocean Ridges: Anomalous Uranium 489
Our Geomagnetism Correspondent
doi:10.1038/231489a0
PDF (134K)
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| | Angles on Pulsars 489
doi:10.1038/231489b0
PDF (134K)
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| | Sleep: Innate and Unmodifiable 490
Our Experimental Psychology Correspondent
doi:10.1038/231490a0
PDF (132K)
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| | Herpes Virusus: Elusive Carcinogens 490
Our Cell Biology Correspondent
doi:10.1038/231490b0
PDF (262K)
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| | Condensation of Hydrogen onto Interstellar Grains 490
doi:10.1038/231490c0
PDF (132K)
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| | Proteins: Umbrella Enzyme 491
Our Molecular Biology Correspondent
doi:10.1038/231491a0
PDF (268K)
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| | Recombination between Mouse and Chick DNAs 491
doi:10.1038/231491b0
PDF (135K)
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| | Selenology: Why Lunar Erosion ? 492
Our Geomagnetism Correspondent
doi:10.1038/231492a0
PDF (267K)
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| | Induced Self-fertility 492
doi:10.1038/231492b0
PDF (138K)
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| | Insects: Cricket Songs 493
A Correspondent
doi:10.1038/231493a0
PDF (367K)
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| | Greater Complexity in the Mantle 493
doi:10.1038/231493b0
PDF (134K)
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| | Meteorology: Sea Ice Terminology 494
doi:10.1038/231494a0
PDF (240K)
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| | Mitochondrial RNA Polymerase Purified 494
doi:10.1038/231494b0
PDF (240K)
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| | Proteins at Cold Spring Harbor 495
A Special Correspondent
doi:10.1038/231495a0
PDF (399K)
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| | Articles |  |
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| | Late Pre-Cambrian Glaciation in Australia as a Stratigraphic Boundary 498
P. R. DUNN, B. P. THOMSON & KALERVO RANKAMA
doi:10.1038/231498a0
Abstract & References | PDF (548K)
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| | Relationship of Centromeric Heterochromatin to Fluorescent Banding Patterns of Metaphase Chromosomes in the Mouse 503
J. D. ROWLEY & W. F. BODMER
doi:10.1038/231503a0
Abstract & References | PDF (684K)
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| | Atomic Positions in Rhombohedral 2-Zinc Insulin Crystals 506
T. L. BLUNDELL, J. F. CUTFIELD, S. M. CUTFIELD, E. J. DODSON, G. G. DODSON, D. C. HODGKIN, D. A. MERCOLA & M. VIJAYAN
doi:10.1038/231506a0
Abstract & References | PDF (410K)
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| | Chromosomal Control of Reversion in Transformed Cells 511
SHINYA HITOTSUMACHI, ZELIG RABINOWITZ & LEO SACHS
doi:10.1038/231511a0
Abstract & References | PDF (482K)
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| | Letters | |
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| | Two Bright New Quasi-stellar Radio Sources 515
I. W. A. BROWNE
doi:10.1038/231515a0
First paragraph & References | PDF (486K)
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| | Isotropy of the 3 K Background 516
PAUL S. HENRY
doi:10.1038/231516a0
First paragraph & References | PDF (473K)
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| | Asymmetric Seafloor Spreading south of Australia 518
JEFFREY K. WEISSEL & DENNIS E. HAYES
doi:10.1038/231518a0
First paragraph & References | PDF (556K)
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| | Experiments related to Possible Production of Superheavy Elements by Proton Irradiation 522
S. KATCOFF & M. L. PERLMAN
doi:10.1038/231522a0
First paragraph & References | PDF (378K)
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| | New Technique for determining the Concentration and Distribution of Lead in Materials 524
E. I. HAMILTON
doi:10.1038/231524a0
First paragraph & References | PDF (274K)
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| | Ultrastructure of Isolated Heavy Beef Heart Mitochondria revealed by the Freeze-etching Technique 525
WILLIAM J. VAIL & ROBERT K. RILEY
doi:10.1038/231525a0
First paragraph & References | PDF (662K)
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| | Electron Microscope Examination of Free IgA Molecules and of their Complexes with Antigen 527
E. A. MUNN, A. FEINSTEIN & A. J. MUNRO
doi:10.1038/231527a0
First paragraph & References | PDF (844K)
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| | Possible Teratogenic Effect of Cigarette Smoking 529
J. FEDRICK, E. D. ALBERMAN & H. GOLDSTEIN
doi:10.1038/231529a0
First paragraph & References | PDF (235K)
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| | Reverse Transcriptases and Ageing 530
ALEX COMFORT
doi:10.1038/231530a0
First paragraph & References | PDF (113K)
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| | Recording System for Monitoring Automaticity of Heart Cells in Culture 531
G. B. BODER, R. J. HARLEY & I. S. JOHNSON
doi:10.1038/231531a0
First paragraph & References | PDF (540K)
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| | Staining of Satellite DNA in Metaphase Chromosomes 532
JORGE J. YUNIS, LILIANA ROLDAN, WALID G. YASMINEH & J. C. LEE
doi:10.1038/231532a0
First paragraph & References | PDF (587K)
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| | Block of Cerebral Actions of L-Dopa with Methyl Receptor Substances 533
G. C. COTZIAS, LILY TANG, J. Z. GINOS, A. R. NICHOLSON JUN. & P. S. PAPAVASILIOU
doi:10.1038/231533a0
First paragraph & References | PDF (757K)
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| | Electron Probe X-Ray Analysis of Osmiophilic Globules as Possible Sites of Early Mineralization in Cartilage 535
T. A. HALL, H. J. HÖHLING & E. BONUCCI
doi:10.1038/231535a0
First paragraph & References | PDF (443K)
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| | Cholera and Prostaglandins 536
ALAN BENNETT
doi:10.1038/231536a0
First paragraph & References | PDF (115K)
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| | Book Reviews |  |
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| | Beyond Alchemy 537
FRANK GREENAWAY reviews A History of Chemistry
Vol. I, Part 1: Theoretical Background. By the late
J. R. Partington
doi:10.1038/231537a0
PDF (138K)
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| | Medicine Morals 537
GEORGE PICKERING reviews Science and Morality in Medicine : a Survey of Medical Educators
By
Earl R. Babbie
doi:10.1038/231537b0
PDF (263K)
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| | Theology and Science 538
C. WEBSTER reviews William Dell : Master Puritan
By
Eric C. Walker
doi:10.1038/231538a0
PDF (130K)
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| | Energy Budget 538
F. B. O'CONNOR reviews Productivity of Terrestrial Animals : Principles and Methods
By
K. Petrusewicz & A. Macfadyen
doi:10.1038/231538b0
PDF (130K)
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| | Igneous Africa 538
R. M. SHACKLETON reviews Symposium on the Bushveld Igneous Complex and other Layered Intrusions
doi:10.1038/231538c0
PDF (263K)
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| | Teaching Geology 539
SUBIR BANERJEE reviews The Earth : an Introduction to Physical Geology
By
John Verhoogen, Francis J. Turner, Lionel E. Weiss & William S. Fyfe
doi:10.1038/231539a0
PDF (271K)
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| | Ecology by Computer 540
J. L. MONTEITH reviews Atlas of Energy Budgets of Plant Leaves
By
David M. Gates & LaVerne E. Papian
doi:10.1038/231540a0
PDF (138K)
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| | Cancer Treatment 541
FRANCIS J. C. ROE reviews Single Agents in Cancer Chemotherapy
By
Robert B. Livingston & Stephen K. Carter
doi:10.1038/231541a0
PDF (133K)
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| | Lipid Handbook 541
JILL ILIFFE reviews Lipid Metabolism
Edited by
S. J. Wakil
doi:10.1038/231541b0
PDF (133K)
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| | Immune Machinery 541
A. J. S. DAVIES reviews Immune Surveillance: Perspectives in Immunology
Edited by
Richard T. Smith & Maurice Landy
doi:10.1038/231541c0
PDF (260K)
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| | Soil and Water 542
B. W. BACHE reviews Soil and Water : Physical Principles and Processes
By
Daniel Hillel
doi:10.1038/231542a0
PDF (132K)
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| | Solids in the Infrared 542
D. H. MARTIN reviews Far-Infrared Properties of Solids
Edited by
S. S. Mitra & S. Nudelman
doi:10.1038/231542b0
PDF (132K)
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| | Cardiology 542
W. BRIGDEN reviews Auscultation of the Heart and Phonocardiography
By
Aubrey Leatham
doi:10.1038/231542c0
PDF (132K)
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| | Quaternary Quarterly 542
R. G. WEST reviews Quaternary Research: an Interdisciplinary Journal
Edited by
A. L. Washburn & Joe S. Creager
doi:10.1038/231542d0
PDF (132K)
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| | Correspondence | |
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| | Smoking and Cancer 543
THEODOR D. STERLING
doi:10.1038/231543a0
References | PDF (121K)
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| | Indian Brain Drain 543
P. K. GOVIND
doi:10.1038/231543b0
PDF (121K)
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| | Problematic Chromosomal RNA 543
JAMES BONNER
doi:10.1038/231543c0
References | PDF (235K)
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| | Problematic Chromosomal RNA 544
Our molecular biology correspondent
doi:10.1038/231544a0
PDF (120K)
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| | British Diary | |
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| | British Diary 544
doi:10.1038/231544b0
PDF (120K)
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| | Reports and Publications | |
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| | Reports and Publications 544
doi:10.1038/231544c0
PDF (118K)
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