September 1975 - Science · EDITORIAL TheCentenary ofForestry in America: H. Clepper..... 845...

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12 September 1975 _ NCE Volume 189, No. 4206 - LETTERS In Defense of Frogs: D. J. Merrell; Social Policy and Mental Illness: R. Barocas, C. W. Gardner, Jr.; F. N. A rnhof ........ . . . . . . . .. . . . . . . . . . . 838 EDITORIAL The Centenary of Forestry in America: H. Clepper ............. .. 845 ARTICLES Potential for Converting Wood into Plastics: I. S. Goldstein . 847 Solar Energy Conversion by Water Photodissociation: V. Bal:ani et al . 852 Doctorates Granted to Women and Minority Group Members: J. L. McC(arthv and D. Wolfe . 856 NEWS AND COMMENT RESEARCH NEWS BOOK REVIEWS ROAR OF DIRECTORS QAIM: N AND SECRETARIES OF AAS SECTIONS DIVISIONS Science Fellows in Washington: From Lab Work to Legislation ............. Basic Research in the Air Force: A Tale of Two Laboratories. FDA Rapped for Delay on New Drugs .......................... Outer Continental Shelf: Congress Weighs Oil Needs and Environment ... .. Minerals and Plate Tectonics (I 1): Seawater and Ore Formation . The New Metallogeny: Impact on Exploration Is Slow, but Some See Good Prospects 860 862 864 865 868 868 Group Selection in Predator-Prey Communities, reviewed byl D. S. Wilson; Proceedings of the Second International Symposium on Coral Reefs, L. Muscatine; The Phagocytic Cell in Host Resistance,J. F. Albright; The Intensity Interferometer, L. Mertz; High-Quality Protein Maize and Nutritional Improvement of Food Legumes by Breeding, G. F. Spragle; Books Received . . . . . . . . 870 ROGER REVELLE MARGARET MEAD WILLIAM D. MC ELROY RICHARD H. BOLT EMILIO Q. DADDARIO Retiring President, Chairman President President-Elect KENNETH B. CLARK EDWARD E. DAVID, JR. MATHEMATICS (A) PHYSICS (B) CHEMISTRY (C) ASTRONOMY (D) Victor L. Klee Victor F. Weisskopf William E. Hanford Carl Sagan Truman A. Botts Rolf M. Sinclair Leo Schubert Arlo U. Landolt PSYCHOLOGY (J) SOCIAL AND ECONOMIC SCIENCES (K) HISTORY AND PHILOSOPHY OF SCIENCE (L) ENGINdEERNG (M) Richard C. Atkinson Seymour M. Lipset Roger C. Buck Eard WenJ Edwin P. Hollander Daniel Rich George Basalla Paul H. obins EDUCATION (Q) DENTISTRY (R) PHARMACEUTICAL SCIENCES (S) INFORMATION, COMPUTING, AND COMMUNICATIOI F. James Rutherford Clifton 0. Dummett James T. Dofuisio Martin Greenberger Phillip R. Fordyce Sholom Pearlman Raymond Jang Joseph Becker ALASKA DIVISION PACIFIC DIVISION SOUTHWESTERN AND ROCKY MOUNTAIN DNt William E. Davis Irma Duncan Geor e A. Zentmyer Robert T. Orr Michelle Baker Max P. Duntord Chairman, Executive Committee Executive Secretary Pre! jent Secretary-Treasurer President Executive Officer SCIENEI.pblse weekly, except the last week in December, but with an extra Iass, on the fburth Tuesday In November, by the Armeican Asociatlon for the Advancement of Science, S s c Ave., NW, , D.C. 205. Now bi with The Scietfi Monthly,* Second-class postagepaidatWashington, D.C. and additional entry. Copyright(® 1975 by ft American Association tor Ancement of Science. Member rates on request. Annual subscripltion $50; foreign postage: Americas $7, overseas $8, air lift to Europe $30. Single copies $2 (back issues $3) exce Food Issue (9 May 1975) is $3 and Guide to Scent Instruet is $6. School year-subscription: 9 months $37.50: 10 months $41.75. Provide 6 weeks notice for change of addres, giving new and old address and zip codes. Send a recent address label. Science Is Indxed In the Reader's Guide to Perodical Literature. on December 13, 2020 http://science.sciencemag.org/ Downloaded from

Transcript of September 1975 - Science · EDITORIAL TheCentenary ofForestry in America: H. Clepper..... 845...

Page 1: September 1975 - Science · EDITORIAL TheCentenary ofForestry in America: H. Clepper..... 845 ARTICLES Potential for Converting Woodinto Plastics: I. S. Goldstein . 847 Solar Energy

12 September 1975 _ NCEVolume 189, No. 4206 -

LETTERS In Defense of Frogs: D. J. Merrell; Social Policy and Mental Illness: R. Barocas,C. W. Gardner, Jr.; F. N. A rnhof........ . . . . . . . . . . . . . . . . . . . 838

EDITORIAL The Centenary of Forestry in America: H. Clepper ............. .. 845

ARTICLES Potential for Converting Wood into Plastics: I. S. Goldstein . 847

Solar Energy Conversion by Water Photodissociation: V. Bal:ani et al . 852

Doctorates Granted to Women and Minority Group Members: J. L. McC(arthv andD. Wolfe . 856

NEWS AND COMMENT

RESEARCH NEWS

BOOK REVIEWS

ROAR OF DIRECTORS

QAIM: N ANDSECRETARIES OFAAS SECTIONS

DIVISIONS

Science Fellows in Washington: From Lab Work to Legislation .............

Basic Research in the Air Force: A Tale of Two Laboratories.

FDA Rapped for Delay on New Drugs ..........................

Outer Continental Shelf: Congress Weighs Oil Needs and Environment ... ..

Minerals and Plate Tectonics (I 1): Seawater and Ore Formation .

The New Metallogeny: Impact on Exploration Is Slow, but Some See Good Prospects

860

862

864

865

868

868

Group Selection in Predator-Prey Communities, reviewed byl D. S. Wilson;Proceedings of the Second International Symposium on Coral Reefs,L. Muscatine; The Phagocytic Cell in Host Resistance,J. F. Albright; TheIntensity Interferometer, L. Mertz; High-Quality Protein Maize andNutritional Improvement of Food Legumes by Breeding, G. F. Spragle;Books Received . . . . . . . . 870

ROGER REVELLE MARGARET MEAD WILLIAM D. MC ELROY RICHARD H. BOLT EMILIO Q. DADDARIORetiring President, Chairman President President-Elect KENNETH B. CLARK EDWARD E. DAVID, JR.

MATHEMATICS (A) PHYSICS (B) CHEMISTRY (C) ASTRONOMY (D)Victor L. Klee Victor F. Weisskopf William E. Hanford Carl SaganTruman A. Botts Rolf M. Sinclair Leo Schubert Arlo U. Landolt

PSYCHOLOGY (J) SOCIAL AND ECONOMIC SCIENCES (K) HISTORY AND PHILOSOPHY OF SCIENCE (L) ENGINdEERNG (M)

Richard C. Atkinson Seymour M. Lipset Roger C. Buck Eard WenJEdwin P. Hollander Daniel Rich George Basalla Paul H. obins

EDUCATION (Q) DENTISTRY (R) PHARMACEUTICAL SCIENCES (S) INFORMATION, COMPUTING, AND COMMUNICATIOIF. James Rutherford Clifton 0. Dummett James T. Dofuisio Martin GreenbergerPhillip R. Fordyce Sholom Pearlman Raymond Jang Joseph Becker

ALASKA DIVISION PACIFIC DIVISION SOUTHWESTERN AND ROCKY MOUNTAIN DNtWilliam E. Davis Irma Duncan Geor e A. Zentmyer Robert T. Orr Michelle Baker Max P. DuntordChairman, Executive Committee Executive Secretary Pre! jent Secretary-Treasurer President Executive Officer

SCIENEI.pblse weekly, except the last week in December, but with an extra Iass, on the fburth Tuesday In November, by the Armeican Asociatlon for the Advancement of Science,S s c Ave., NW, , D.C. 205. Now bi with The Scietfi Monthly,* Second-class postagepaidatWashington, D.C. and additional entry. Copyright(® 1975

by ft American Association tor Ancement of Science. Member rates on request. Annual subscripltion $50; foreign postage: Americas $7, overseas $8, air lift to Europe $30. Singlecopies $2 (back issues $3) exce Food Issue (9 May 1975) is $3 and Guide to Scent Instruet is $6. School year-subscription: 9 months $37.50: 10 months $41.75. Provide 6 weeks

notice for change of addres, giving new and old address and zip codes. Send a recent address label. Science Is Indxed In the Reader's Guide to Perodical Literature.

on Decem

ber 13, 2020

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Page 2: September 1975 - Science · EDITORIAL TheCentenary ofForestry in America: H. Clepper..... 845 ARTICLES Potential for Converting Woodinto Plastics: I. S. Goldstein . 847 Solar Energy

AMERICAN ASSOCIATiONxOr THE ADVANCEMENT or SCIENCE

REPORTS Jupiter's Atmosphere: Problems and Potential of Radio Occultation: V. R. Eshlenman 876

Spontaneous Fission-Neutron Fission Xenon: A New Technique for DatingGeological Events: A. Teitsma, W. B. Clarke, C. J. Allgre .... . . . . . . . . . 878

Supercooling of Water to -92°C Under Pressure: H. Kanno, R. J. Speedy,C. A. Angell ......... . .. . . .. . .. . .. . .. . .. . .. . .. . . . 880

Muscle Activation: Effects of Small Length Changes on Calcium Release in SingleFibers: E. B. Ridgway and A. M. Gordon . . . . . . . . . . . . . . . . . . . . . 881-

Pressure-Induced Depolymerization of Brain Microtubules in vitro: E. D. Salmon . . 884Inhibition of the Growth and Development of a Transplantable Murine Melanoma

by Vitamin A: E. L. Felix, B. Loyd, M. H. Cohen ..... . . . . . . . . . . . . . 886DNA Hybridization and Evolutionary Relationships in Three Osmunda Species:

D. B. Stein and W. F. Thompson . .......... .... ............ 888

Chestnut Blight: Biological Control by Transmissible Hypovirulence in Endothiaparasitica: N. K. Van Alfen et al ........................... 890

Flagellar Coordination in Chlamydomonas reinhardtii: Isolation and Reactivationof the Flagellar Apparatus: J. S. Hyams and G. G. Borisy . . . . . . . . . . . . . . 891

Taste Aversions to Sexual Attractants: R. E. Johnston and D. M. Zahorik .893

Glucoregulatory Feeding by Rats after Intraventricular 6-Hydroxydopamine orLateral Hypothalamic Lesions: E. M. Stricker, M. I. Friedman, M. J. Zigmond. 895

Glucagon Release: Paradoxical Stimulation by Glucose During Calcium Deprivation:V. Leclercq-Meyer et al. . . . . . . . . . . . . . . . . . . . . . . . . . 897

Technical Comments: Prostaglandins and the Pulmonary Vasoconstrictor Responseto Alveolar Hypoxia: J. Vaage and A. Hauge; S. I. Said and N. Hara . . . . . . . . 899

PRODUCTS ANDMATERIALS

Blood Slide Centrifuge;pH Meter; Programmable Gradient Elution Accessory;Film for Transmission Electron Micrography; Graphics Display System;Sample Changer for Liquid Densitometry; Literature . . . . . . . . . . . . . . . .902

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The American Association for the Advancement of Science was founded in 1848 and incorporated in 1874. Itsobjects are to turther the work of scientists, to facilitate cooperation among them, to improve the effective-ness of science in the promotion of human welfare, and to increase public understanding and appreciation ofthe importance and promise of the methods of science in human progress. Postmaster: Send Form 3579 toSCIENCE. 1515 Massachusetts Avenue, NW, Washington, D.C. 20005.

COVER

Photograph, taken in 1922, of Americanchestnut tree (Castanea dentata) afterbeing killed by the chestnut blight fungus(Endothia parasitica). This pathogen,introduced from Asia, destroyed a majorU.S. forest tree species. See page 890.[Connecticut Agricultural ExperimentStation, New Haven; poem from Com-plete Poems of Robert Frost, Holt,Rinehart and Winston, New York, 1949]

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