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PRICE 4.00 THIS MAGAZINE IS IN GOOD SHAPE NO TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE. THE COVER IS MISSING BUT THE CONTENTS ARE IN TACT	SCIENTIFIC AMERICAN MAGAZINE SEPTEMBER 1967 Established 1845 SCIENTIFIC AMERICAN SEPTEMBER 1967 Volume 217 Number 3 TABLE OF CONTENTS MATERIALS, by Cyril Stanley Smith An issue on materials, with special reference to their basic nature and properties. THE SOLID STATE, by Sir Nevill Molt Materials can be divided into two general categories: crystalline and amorphous. THE NATURE OF METALS, by A. H. Cottrell Such properties of metals as luster and conductivity flow from the metallic bond. THE NATURE OF CERAMICS, by John J. Gilman The ionic and covalent bonds render ceramics hard, brittle and resistant heat. THE NATURE OF GLASSES, by R. J. Charles Glasses are normally amorphous materials. How do they avoid being crystalline tHE NATURE OF POLYMERIC MATERIALS, by Herman F. Mark The chainlike molecules of polymers form both amorphous and crystalline arrays. THE NATURE OF COMPOSITE MATERIALS, by Anthony Kelly Two materials can be combined to obtain properties that neither shows by itself. THE THERMAL PROPERTIES OF MATERIALS, by John Ziman Heat is conducted through materials by the particle-like waves known as phonons. THE ELECTRICAL PROPERTIES OF MATERIALS, by Henry Ehrenrcich There is a wide spectrum from the best electrical conductor and the best insulator. THE CHEMICAL PROPERTIES OF MATERIALS, by Howard Reiss The chemical reactions that are familiar in liquids also take place within solids. THE MAGNETIC PROPERTIES OF MATERIALS, by Frederic Keffer The magnetism of a strong magnet resides in the magnetism of single electrons. THE OPTICAL PROPERTIES OF MATERIALS, by Ali Javan What is the basis for such properties as transparency, opacity and laser action THE COMPETITION OF MATERIALS, by W. 0. Alexander Deeper knowledge of materials gives freer rein to economics in choosing them.
SA0002 PRICE 5.OO THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE JUNE 1968 Table of Contents THE MODULATION OF LASER LIGHT RECENTLY DEVELOPED MODULATORS IMPROVE THE LASER'S POTENTIAL FOR COMMUNICATION. A STONE AGE CAMPSITE AT THE GATEWAY TO AMERICA ONION PORTAGE IN ALASKA FILLS A GAP IN THE PREHISTORY OF AMERICA. STARS IN CONTACT THESE SURPRISINGLY COMMON TWIN BODIES PROVIDE CLUES TO THE EVOLUTION OF STARS. STANDARDS OF MEASUREMENT ON A CONTINUOUS SEARCH FOR MEASURES OF LENGTH, MASS, TIME, AND TEMPERATURE. THE BRAIN OF BIRDS IT MEDIATES INTELLIGENT BEHAVIOR WITH LITTLE DEPENDENCE ON THE CEREBRAL CORTEX. THE DISCOVERY OF DNA THE GERMAN BIOCHEMIST FRIEDRICH MIESCHER FOUND IT IN BLOOD CELLS 100 YEARS AGO. POLISHING NEITHER ABRASION NOR MELTING IS QUITE RIGHT AS AN EXPLANATION PLANTS WITHOUT CELLULOSE THE ACCEPTED BELIEF THAT ALL GREEN PLANTS CONTAIN CELLULOSE HAS PROVED INCORRECT.
SA0003 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	AUGUST 1968 SCIENTIFIC AMERICAN Table of Contents A STUDY OF GHETTO RIOTERS THE BACKGROUND OF RIOTERS, INVESTIGATED IN INTENSIVE SURVEYS, IS FULL OF SURPRISES HIGH-POWER CARBON DIOXIDE MOLECULAR ENERGY LEVELS ARE EXPLOITED TO GENERATE KILOWATTS OF COBHERENT INFRARED. L-ASPARAGINE AND LEUKEMIA LEUKEMIA CELLS NEEDING AN AMINO ACID ARE VULNERABLE TO AN ENZYME THAT DESTROY THE INFRARED SKY A SPECIAL 62-INCH TELESCOPE IS EMPLOYED TO SURVEY THE SKY AT INFARED WAVE LENGTHS. EXPERIMENTS IN WATER-BREATHING MAMMALS, INCLUDING MAN, CAN OBTAIN SUFFICIENT OXYGEN FROM WATER FILLING THE LUNG. THE ORIGINS OF THE OLYMPIC GAMES TEXTS AND ARTIFACT PROVIDE SOME DETAIL ON THE COMPETITIONS OF ANCIENT GREECE. MOVEMENTS OF THE EYE A CAMERA ON THE HEAD IS USED TO STUDY EYE MOVEMENTS DURING VARIOUS ACTIVITIES.. QUEUES WAITING IN LINE IS SUBJECTED TO FORMAL ANALYSIS POINTING TOWARD PRACTICAL MEASURES.
SA0004 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE FEBRUARY 1969 Table of Contents THE END OF THE MONKEY WARTHE Supreme Court has killed an Arkansas law banning the teaching of evolution ECOLOGICAL CHEMISTRY A complex web is spun by plant substances that poison vertebrates but not insects ORGANIC LASERS Organic molecules in liquids or solids are induced to "lase" in different colors THE ASTROPHYSICS OF COSMIC RAYS These energetic particles rank with the stars as a major constituent of the universe THE BIOCHEMISTRY OF ANXIETYAnxiety neurosis may be related to a high concentration of lactate in the blood SUBSISTENCE HERDING IN UGANDA The way the Karimojong tend cattle seems odd, but it is suited to their needs. ROTARY ENGINES They are piston engines that operate without benefit of reciprocating motion THE GOLGI APPARATUS Much has not been learned about this mysterious component of the living cell
SA0005 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE. NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	MARCH 1969 SCIENTIFIC AMERICAN MAGAZINE Table of Contents THERMAL POLLUTION AND AQUATIC LIFE THE DISPOSAL OF INDUSTRIAL HEAT IN NATURAL WATERS CREATES ECOLOGICAL PROBLEMS SUPER PLASTIC ME CERTAIN ALLOYS CAN BE SHAPED BY TECHNIQUES USUALLY LIMITED TO GLASS AND PLASTICS. PHASES IN CELL DIFFERENTIATION EXPERIMENTS WITH EMBRYONIC PANCREAS POINT TO REGULATORY PERIODS. CONTINENTAL DRIFT AND EVOLUTION THE BREAKUP OF CONTINENTS MAY HAVE SHAPED THE RISE OF REPTILES AND MAMMALS BROWNIAN MOTION AND POTENTIAL THEORY THESE TWO BRANCHES OF PHYSICS ARE MATHEMATICALLY AKIN. THE ATMOSPHERES OF MARS AND VENUS THEIR SIMILARITIES AND DIFFERENCES ARE COMPARED ON THE BASIS OF THREE SPACE PROBES. PLAQUE TOXIN HOW DOES PASTEURELLA PESTIS, THE BACILLUS OF PLAQUE, KILL ITS MAMMALIAN HOST THE FIRST ELECTRON TUBE IT WAS THE TWO-ELEMENT TUBE INVENTED IN 1904 BY JOHN AMBROSE FLEMING
SA0006 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE JULY 1969 Table of Contents SYSTEMS ANALYSIS OF URBAN TRANSPORTATION NOVEL TRANSIT SYSTEMS MAY ALREADY BE ECONOMIC. NEUTRINOS FROM THE SUN AN APPARATUS IS SET UP IN A MINE TO DETECT NEUTRINOS FROM THE SOLAR NUCLEAR REACTIONS. . PORPHYRIA AND KING GEORGE III THE BRITISH MONARCH'S "INSANITY" MAY HAVE BEEN THE DELIRIUN OF HEREDITARY DISEASE MILK THE STUFF PRODUCED BY DAIRY COWS IS A REMARKABLE BLEND OF COMPLEX MOLECULES. LIQUID METALS A METAL IS CRYSTALLINE AND A LIQUID IS NOT. WHAT IS THE NATURE OF METALLIC LIQUIDS COMPUTER ANALYSIS OF PROTEIN EVOLUTION SIMILAR PROTEINS FOR DIFFERENT SPECIES ARE COMPARED AUTOMATICALLY. HIGH-TEMPERATURE PLASTICS PLASTICS HAVE BEEN DEVELOPED THAT RESIST TEMPERATURES AS HIGH
SA0007 SOLD THANKS WILLIAM ENJOY THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE AUGUST 1969 Table of Contents MILITARY TECHNOLOGY AND NATIONAL SECURITY THE ABM ISSUE DEMONSTRATED THE FUTILITY OF THE TECHNOLOGICAL APPROACH TO SECURITY. "GENETIC DRIFT" RANDOM CHANGES IN GENE FREQUENCIES PAY A ROLE IN HUMAN EVOLUTION. METALLIDING METAL ARE DEFUSED INTO THE SURFACE OF OTHER METALS, CREATING NEW MATERIALS. THE SIZE AND SHAPE OF ATOMIC NUCLEI SOME AR SPHERES; SOME, OBLATE AND PROLATE SPHEROIDS THE PETROGLYPHS OF SIBERIA ROCK DRAWINGS LINK ACIENT PEOPLES LIVING AS FAR APART AS EUROPE AND THE FAR EAST. KERATINS THE INTRICATE ARCHITECTURE OF THESE COMMON PROTEINS IS GRADUALLY BEING REVEALED. THE WEDELL SEAL THIS ANTAARCTIC MAMMAL CON SWIM FOR MILES UNDER THE SHELF ICE ON ONE BREATH OF AIR. RUDOLF DEISEL AND HIS RATIONAL ENGINE HE HAD INTENDED TO PRODUCE AN ENGINE WITH AN IDEAL CAARNOT CYCLE, BUT HE FAILED
AS0008 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE SEPTEMBER 1969 THE OCEAN Table of Contents THE OCEAN AN ISSUE ON THE OCEAN, ITS USES AND ITS ROLE IN THE EMERGENCE OF THE NEW GEOLOGY THE ORIGIN OF THE OCEANS IN THE GEOLOGICAL SENSE THE FLOOR OF THE PRESENT DEEP OCEANS IS REMARKABLY YOUNG. THE ATMOSPHERE AND THE OCEAN THE OCEANIC CIRCULATION IS DRIVEN LARGELY BY THE WIND AND BY DENSITY DIFFERENCES. THE CONTINENTAL SHELVES THEY ARE ALTERNATELY EXPOSED AND SUBMERGED AS THE GLACIERS ADVANCE AND RETREAT. THE DEEP OCEAN FLOOR IT IS CREATED IN VAST TECTONIC PLATES THE GROW OUTWARD FROM THE MID-OCEAN RIDGES THE NATURE OF OCEANIC LIFE THE CHAIN OF OCEAN LIFE BEGINS WITH A DILUTE BROTH OF PHOTOSYNTHETIC ORGANISMS. THE PHYSICAL RESOURCES OF THE OCEAN THEY INCLUDE NOT ONLY MINERALS BUT ALSO WATER ITSELF AND THE FRAGILE SHORELINE. THE FOOD RESOURCES OF THE OCEAN THE ANNUAL HARVEST IS 55 MILLION TONS, HALF OF WHICH IS CONVERTED INTO FISH MEAL. TECHNOLOGY AND THE OCEAN THE ANNUAL HARVEST IS 55 MILLION TONS, HALF OF WHICH IS CONVERTED INTO FISH MEAL.
SA0009 PRICE 5.00 THIS MAGAZINE IS IN GOOD SHAPE NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	SCIENTIFIC AMERICAN MAGAZINE NOVEMBER 1969 Table of Contents ACUTE RESPIRATORY FAILURE IT IS A DISTINCT CLINICAL ENITY BEING TREATED BY A NEW KIND OF SPECIALIST AMORPHOUS-SEMICONDUCTOR SWITCHING DEVICES THAT ARE NOT CRYSTALLINE BUT GLASSY CAN REGULATE THE FLOW OF ELECTRICITY EARLY MAN IN THE WEST INDIES STONE TOOLS SUGGEST THAT HE ARRIVED THERE MUCH EARLIER THAN HAS BEEN THOUGHT. MAGNETIC RECORDING THIS TECHNOLOGY PLAYS A KEY ROLE IN MODERN COMMUNICATION AND DATA PROCESSING. NON-EUCLIDEAN GEOMETRY BEFORE EUCLIDALLUSIONS TO IT ARE FOUND IN WORKS OF ARISTOTLE WRITTEN A GENERATION BEFORE EUCLID. THE ORIGIN OF THE OCEAN RIDGESARE THE CONTINENTS BEING PUSHED APART BY CONVECTION CURRENTS OR SOME OTHER FORCE THE RECEPTOR SITE FOR A BACTERIAL VIRUS THE CHEMICAL STRUCTURE OF THE SITE IS SPECIFIC FOR THE VIRUS. HOW BIRDS SING THE MECHANISM IS QUITE DIFFERENT FROM THAT OF A WIND INSTRUMENT OR THE VOICE
SA0010 PRICE 5.00 THIS MAGAZINE IS IN EXCELLENT SHAPE. NO MISSING OR TORN PAGES. IT SHOWS IT'S AGE. ALL PAGES SHOW LIGHT DISCOLORATION, BUT ARE NOT BRITTLE.	JANUARY 1970 SCIENTIFIC AMERICAN TABLE OF CONTENTS THE LIMITATION OF STRATEGIC ARMS THE PROSPECTS WOULD BE IMPROVED BY A BAN ON TESTING MIRV'S LEARNING IN THE AUTONOMIC NERVOUS SYSTEM BEHAVIORAL RESPONSES TRADITIONALLY REGARDED AS INVOLUNTARY CAN IN FACT BE LEARNED. AERODYNAMIC WHISTLES THEY INCLUDE NOT ONLY ORGANS AND FLUTED BUT ALSO OIL BURNERS AND FLUIDIC DEVICES. THE SHAPES OF ORGANIC MOLECULES CERTAIN MLECULES CAN TAKE VARIOUS FORMS BY ROTATIONS AROUND CHEMICAL BONDS. GIGANTOPITHECUS THIS EXTINCT APE MAY HAVE STOOD NINE FEET TALL AND WEIGHED 600 POUNDS. THE RECOGNITION OF DNA IN BACTERIA SOME BACTERIA CAN DETECT AND DESTROY DNA INJECTED INTO THEM BY A BACTERIAL VIRUS. THE PEOPLE OF YORK: 1533-1812 PATTERNS OF BIRTH, DEATH AND MARRIAGE ARE TRACED IN THE CITY'S PARISH REGISTERS. MODELS OF OCEANIC CIRCULATION THE GREAT OCEAN CURRENTS ARE STUDIED BY MEANS OF ANALOGUES AT LABORATORY SCALE.