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VoGumrn 186, No. 4169
LETTERS Sitle Effect, of 5-Th}o-D-GlL'co c: J. W. Kalat; Safety of Uiii-aound Diagnosis:W. L. Nyborg; Breast Cancer Treatments: M. Bergner; Solar Ponds:P. Nielseni; P. P. Hdlec and P. Sonznenifeld; Herbicide Use in Vietnanm:P. Kin-stadte.................................................
EDITORIAL Social Sciences, Future Tense: L. Reisvinau...............................
ARTICLES Anthropological Film: A Scientific and Hunmanistic ReEource: E. R. Sorenson........Rice Breeding and World Food Production: P. R. Jentninr....................ProdLuct Liabilityand the Technical Expert: H. R. Piecler et al]................
NEWS AND COMMENT
RESEARCH NEWS
BOOK REVIEWS
Green Revolution (I): A Just Technology Often Unjustly Used .........
CouLncil for a Livable World: Dispute over Campaign Finance Disclosure . . .
Academy for Contemporary Problems: Mixed Parentage, Ambitious Aims ...
Computers: First the Maxi, Then the Mini, Now It's the Micro ...............Aging Research (1): Cellular Theories of Senescence ......................
Memory and Nerve Cell Connections, review^edby A. D. Gi-inntell; SurfaceCarbohydrates of the Eukaryotic Cell, A. Eichholz; Characterization ofSolid Surfaces, G. A. So,norjai; Chemistry in Botanical Classification,0. T. Solbrig ..............................................
ANNUAL MEETING 1975 AAAS Science Film Festival: Interscience linternational ................
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OARD OF DIRECTORS LEONARD M. RIESER ROGER REVELLE MARGARW. MEAD RICHARD H. BOLT EMILIOQ.FDADDARIORetiring Prident, Chairman President PresidentElect BARRY COMMONER EDWARD E. DAVID, JFCHAIRMEN AND MATHM WiCS (A) PHYSICS (8) CHEMISTRY (C) ASTRONOMY (0)
OF John :. Kemeny Soome J. Buhebum MiltonHarris Ivan R. KingSECRETARIES OF Truman A. Botts Rolf M. Sinclair Leo Schubert Arlo U.0LandoltAAAS SECTIONS
PSYCHOLOGY (I) SOCIAL AND ECONOMIC SCIENCESS (K) HISORY AND PHILOSOPHY OF SCIENCE (L) ENGINEERINGCharles Coe eog , tgr Oe igrc yo .Tap1e3Edwin P. Hodlender Daniel Rich George Basalla Paul H. Robbin
EDUCATION (Q) DENTISTRY (R) PHARMACEUTICAL SCIENCES (S) INFORMTION AND COMMUNICATIONJ. on atn KoW4Mrd M. Louis P. J y MatnGr egePhillip R. Fordyce Sholom Pearimen John Autiln Joseph Becke
DIVISIONS ALASKA DIVISION PACIFIC DIVISION SOUTHWESTRN AND ROCKY UNOUTAIN DWilliam E. Davis Irma Duncan: George A. Zentmyer Robert T. :Orr Joseph A. Sthufle Max P. DunfordChairman, Executive Committee Executive Secetary President Secretary-Treasurer President Executive Officer
SCIENCE is publi y pt the lst weak In Dembr, but wibt an extra leaue on the fourth Tuesday in November, by the American AssociatI for the A nceetScience, 1515 Mv NW Wahinton CD.C 20005. N ombined with The ScientfIc MmtiO. Second-class postge paid it Washinto, D.C. cpright @ 1974the American Associati-fth Adncement o Scie. M rate on reuest. Annual subsiption t$40 foreign postage: eic $, o e: $,airft to Europ $21Single copies $1 (back isses, S2 except Guide to Seifc lst which is $4. School 'year subcitption: 9 months $30: moths $33.00 PrIde 6eeks noice for chanof addres, giving nR and old address and zip codes. Send a recent address label. SIence Ii Indexed in the Reader's Guide to Periodical LIeature.
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AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE
REPORTS Scaling Stride FrequcIIC' and Gait to Animal Size: Mice to Horses:.V. C. He lhmd(l C. R. Tay/or, T. A. Alc lahon . . . . . . . . . . . .1112
Vermetid Giastropods aind lntertidal Reefs in Israel and Bermlllida: U. N . Safriel 1113
Radioimullunoassax for Hiniuimn Procollagen: Al. B. Taiho im, B. Go/l/er,e.C. J. Seri ................................................................. 1115
Adenosine 3'.5'-Monophosphate Content in Rat Caudate Nucleus: D)emonstrationof Dopaminergic and Adrenergic Receptors: J. Forni, B. K. KruegWer,P. Gree gard . . . . . . . . . . . . . . . . . . . . . . . . . 11 8
Iead Contamination around Secondarv Smelters: E-stimation of I)ispers.al andAcCutmulation by Humains: T. A4. RoCrTt et al. .......................... 1120
Viability of Stored Seed: Extension by Catthodic Pr-otectioni: VN. W. PmmIeit,nc r.J. H. Adam.son, P. Berjak .......... . . . . .. .. ......... ..... 123
Serological Detection of Mixed I ymphocyte CuIltuire Identity between Cells ThaltDiffer bv One Hl-A Haplotype: T. Kovithavt,o,p et al .......................1124
)endritic Spine -Dvsgenesis" and Mental Retardation: O). P.'urpuro................. 1126
Svnergism of Insecticides b\ Herbicides: Ffect of Environmental Factors:T. 71. Liam,s. and I . P. Lichten,ste i,! ...... .................................................. 1128
TIarget StruIctuire aind Echo Spectral Discrimina.tion by Echolocating Batts:J. A. Simmios et al . ................. ........ ............. ...... . 1130
NCeirall Basis ot Orientation Perception in l3riniate Vision: R. J. W. Aflamsfiehl.t.... ... 1133
T('/e11hCid Commznielts: Retrograde Anmnesia and the "Remllinder Effect':,4. Al. Schnei(ler: P. V Gold, J. W. Haycock, J. l. .1(-Gaulph............. ... 1135
MEETINGS The Brain: Ani Enidocrinic Organi and Hormlonie T11igct: W. L. Stumpf alnldtL. D. Grant: Transmissible Disease and Blood TralnsfLsionl: R. Y. Dodd.Forthconming Fvents. . . . . . . . . . . . . . . . . . 1137
H M. DAVISRD H. GOODENOUGH
ILOGY AND GEOGRAPHY (E)h L. Smileyion E. BisqueDICAL SCIENCES (N)
J. Farberiard J. Johns.TISTICS (U)1 W. Tukeyi Glaser
CARYL P. HASKINS WILLIAM T. GOLDENCHAUNCEY STARR Treasurer
BIOLOGICAL SCIENCES (G)Beatrice M. SweeneyJane C. Kaltenbach
AGRICULTURE (0)Ned D. BayleyJ. Lawrence Apple
ATMOSPHERIC AND HYDROSPHERICSCIENCES (W)
William R. BandeenStanley A. Changnon, Jr.
ANTHROPOLOGY (H)Bernice KaplanPhilleo Nash
INDUSTRIAL SCIENCE (P)Gabor StrasserRobert L. Stern
GENERAL (X)Frederick SeitzJoseph F. Coates
American Association for the Advancement of Science was founded in 1848 and incorporated in4. Its objects are to further the work of scientists, to facilitate cooperation among them, torove the effectiveness of science in the promotion of human welfare, and to increase public under-iding and appreciation of the importance and promise of the methods of science in human progress.tmaster: Send Form 3547 to SCIENCE, 1515 Massachusetts Avenue, NW. Washington, D.C. 20005.
COVER
Toddler explores his Surroundings.Fore children of New (Guinea areprovided considerable fr-eedom topursue their spontaneous interests andpredilections without adult concernor interference. This freedonm extendsto exploring the characteristics of po-tentially dangerous objects such asaxes or knives. See page 1079. 1E.Richard Sorenson, Smithsonian Insti-t LItior. Washington, D.C.]
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