Scientific American Supplement, No. 483, April 4, 1885Front matterReading editionChapter navigation38 reading sectionsGo to chapterChoose a chapter…Front matterNEW YORK, APRIL 4, 1885ACKNOWLEDGMENT.THEODOR BILLROTH, PROFESSOR OF SURGERY AT VIENNA.HOW CHOLERA IS SPREAD.SULPHUROUS ACID AND SULPHIDE OF CARBON.THE DETERMINATION OF GRAPHITE IN MINERALS.SULPHOCYANIDE OF POTASSIUM.FOUCAULT'S APPARATUS FOR MANUFACTURING ILLUMINATING GAS AND HYDROGEN.SUGAR NITRO-GLYCERINE.THE CIRCLE-DIVIDER.SOLUBLE GLASS.THE JET VENTILATOR.ON REMELTING OF CAST IRON.FEEDING BOILERS AT THE BOTTOM.IRON PRINTING AND MICROSCOPIC PHOTOGRAPHY.PRACTICAL DIRECTIONS FOR MAKING LANTERN TRANSPARENCIES.5THE HONIGMANN FIRELESS ENGINE.SIMPLE METHODS OF CALCULATING STRESSES IN GIRDERS.A SPRING MOTOR.CASTING CHILLED CAR WHEELS.ELECTRICITY AND PRESTIDIGITATION.PORTABLE ELECTRIC SAFETY LAMPS.THE ELECTRIC DISCHARGE AND SPARK PHOTOGRAPHED DIRECTLY WITHOUT AN OBJECTIVE.THE TRUE CONSTANT OF GRAVITY.ORIGIN OF THUNDERSTORMS.IMPROVISED TOYS.THE ÆOLIAN HARP.PHYSICS WITHOUT APPARATUS.SCIENTIFIC AMUSEMENTS.HOW TO BREAK A CORD WITH THE HANDS.AN AQUATIC VELOCIPEDE FOR DUCK HUNTING.A SUNSHINE RECORDER.SKELETON OF A BEAR FOUND IN A CAVE IN STYRIA, AUSTRIA.THE HARDNESS OF METALS.STEAM YACHTS.THE SCIENTIFIC AMERICAN SUPPLEMENT.PATENTS.Beginning of this editionNext chapter →NEW YORK, APRIL 4, 1885All chapters and sections (38)Opening pagesFront matterOther sectionsNEW YORK, APRIL 4, 1885ACKNOWLEDGMENT.THEODOR BILLROTH, PROFESSOR OF SURGERY AT VIENNA.HOW CHOLERA IS SPREAD.SULPHUROUS ACID AND SULPHIDE OF CARBON.THE DETERMINATION OF GRAPHITE IN MINERALS.SULPHOCYANIDE OF POTASSIUM.FOUCAULT'S APPARATUS FOR MANUFACTURING ILLUMINATING GAS AND HYDROGEN.SUGAR NITRO-GLYCERINE.THE CIRCLE-DIVIDER.SOLUBLE GLASS.THE JET VENTILATOR.ON REMELTING OF CAST IRON.FEEDING BOILERS AT THE BOTTOM.IRON PRINTING AND MICROSCOPIC PHOTOGRAPHY.PRACTICAL DIRECTIONS FOR MAKING LANTERN TRANSPARENCIES.5THE HONIGMANN FIRELESS ENGINE.SIMPLE METHODS OF CALCULATING STRESSES IN GIRDERS.A SPRING MOTOR.CASTING CHILLED CAR WHEELS.ELECTRICITY AND PRESTIDIGITATION.PORTABLE ELECTRIC SAFETY LAMPS.THE ELECTRIC DISCHARGE AND SPARK PHOTOGRAPHED DIRECTLY WITHOUT AN OBJECTIVE.THE TRUE CONSTANT OF GRAVITY.ORIGIN OF THUNDERSTORMS.IMPROVISED TOYS.THE ÆOLIAN HARP.PHYSICS WITHOUT APPARATUS.SCIENTIFIC AMUSEMENTS.HOW TO BREAK A CORD WITH THE HANDS.AN AQUATIC VELOCIPEDE FOR DUCK HUNTING.A SUNSHINE RECORDER.SKELETON OF A BEAR FOUND IN A CAVE IN STYRIA, AUSTRIA.THE HARDNESS OF METALS.STEAM YACHTS.THE SCIENTIFIC AMERICAN SUPPLEMENT.PATENTS.TitleNEW YORK, APRIL 4, 1885 →