ISSN 0036-8075

14 December 1984Volume 226, No. 4680

LETTERS The Merck Index Online: M. Windholz; The Twitch: A Cautionary Tale: R. Reid;Firewood Conservation: A. C. Stern; A. M. Squires; Evolution: An ExpandedView: M. Burd; The Garrison Project and Drainage Divides:I. G. Grossman ......................................................

EDITORIAL Effects of SO2 and NO, Emissions.

ARTICLES Generation and Migration of Light Hydrocarbons: J. M. Hunt ..................

Intrinsic Mechanisms of Pain Inhibition: Activation by Stress:G. W. Terman et al....................................................

Trends in Industrial Use of Energy: R. C. Marlay .............................

Influence of Clonal Selection on the Expression of Immunoglobulin VariableRegion Genes: T. Manser, S.-Y. Huang, M. L. Gefter .....................

NEWS AND COMMENT

RESEARCH NEWS

BOOK REVIEWS

A Silver Lining for the Weather Satellites? ...................................

NSF Readies New Education Program .......................................

Pests Prevail Despite Pesticides .............................................

European Synchrotron Choice Draws Protests ................................

Mixed Signals on Export Controls ...........................................

Briefing: Weinberger Backs Biowarfare Lab; NCI Tightens Security After BombThreat; Farm Mechanization Suit Enters New Phase; Lawsuit Seeks a Cap onFluorocarbon Production; Comings and Goings............................

Probing the Long Tail of the Magnetosphere ..................................

Free Electron Lasers Show Their Power .....................................

Muscles, Reflexes, and Locomotion, reviewed by I. A. Johnston; ComparativeNeurology of the Optic Tectum, W. Wilczynski; The Geochronology and

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Evolution of Africa, M. P. A. Jackson; Ice Sheets and Climate,G. E. Birchfield; Magnetic Reconnection in Space and Laboratory Plasmas,T. G. Forbes; Books Received .......... ................................ 1308

REPORTS Deposit from a Giant Wave on the Island of Lanai, Hawaii:J. G. Moore and G. W. Moore ......... ................................. 1312

Specific Sequence Homology and Three-Dimensional Structure of an AminoacylTransfer RNA Synthetase: T. Webster et al. ...... ....................... 1315

Inability of Mouse Blastomere Nuclei Transferred to Enucleated Zygotes toSupport Development in Vitro: J. McGrath and D. Solter ..... ............. 1317

RNA Required for Import of Precursor Proteins into Mitochondria:F. A. Firgaira et al .1319

Persistence of the Entire Epstein-Barr Virus Genome Integrated into HumanLymphocyte DNA: T. Matsuo et al. ........ ............................ 1322

Monoclonal Idiotope Vaccine Against Streptococcus pneumoniae Infection:M. K. McNamara, R. E. Ward, H. Kohler ................................ 1325

Essential Role of Insulin in Transcription of the Rat 25,000 Molecular WeightCasein Gene: P. Chomczynski, P. Qasba, Y. J. Topper ..................... 1326

Carbohydrate Dramatically Influences Immune Reactivity of Antisera to ViralGlycoprotein Antigens: S. Alexander and J. H. Elder ..... ................. 1328

Pollen Feeding in an Orb-Weaving Spider: R. B. Smith and T. P. Mommsen...... 1330

Auditory Illusions Demonstrating That Tones Are Assimilated to an InternalizedMusical Scale: R. N Shepard and D. S. Jordan ............................ 1333

Activated Expression of the N-myc Gene in Human Neuroblastomas and RelatedTumors: N. E. Kohl, C. E. Gee, F. W. Alt ................................ 1335

JC Virus Enhancer-Promoter Active in Human Brain Cells: S. Kenney et al. 1337

Purified Human Granulocyte-Macrophage Colony-Stimulating Factor: DirectAction on Neutrophils: J. C. Gasson et al . ............................... 1339

Elevated Concentrations of CSF Corticotropin-Releasing Factor-LikeImmunoreactivity in Depressed Patients: C. B. Nemeroffet al . ............. 1342

Amino-Terminal Amino Acid Sequence of the Silkworm ProthoracicotropicHormone: Homology with Insulin: H. Nagasawa et al .................... 1344

Voltage-Dependent Calcium Channels in Glial Cells: B. A. MacVicar ............ 1345

COVER

Basic oxygen fumnace beneath ladle tilt-ed to the charging position to receivethe liquid hot metal portion of tIecharge before refining iron into steel.Energy-intensive industrial processesare in a state of transition, both techno-logically and in the demand for theirproducts. This has implications for fu-ture energy demand and the changingcomposition of U.S. industrial produc-tion. See page 1277. [U.S. Departmentof Energy, Washington, D.C. 20585]

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226 (4680)

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